{"id":1659,"date":"2026-11-12T21:32:59","date_gmt":"2026-11-12T21:32:59","guid":{"rendered":"https:\/\/www.r3tr0.net\/?p=1659"},"modified":"2026-11-12T21:33:01","modified_gmt":"2026-11-12T21:33:01","slug":"wondermca-mp3-player-bluetooth-headphones","status":"publish","type":"post","link":"https:\/\/www.r3tr0.net\/index.php\/2026\/11\/12\/wondermca-mp3-player-bluetooth-headphones\/","title":{"rendered":"WonderMCA: an MP3 player and Bluetooth headphones for your PS\/2"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:20px;line-height:1.55\"><strong>Your PS\/2 now plays MP3 files, and its sound can go to Bluetooth headphones.<\/strong> The WonderMCA decodes the MP3 files of its microSD card or USB stick by itself, and it can send everything it plays (Sound Blaster, AdLib, Gravis UltraSound, CD audio and now MP3) to a Bluetooth headset or speaker instead of the jack. The Bluetooth game pads got better too: more pads, steadier links.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_playing_v2.png\" alt=\"WMPLAY while a song plays: the folder of the microSD card on the left with the bar on 02 Neon Harbor.mp3, on the right the name of the song, Playing 01:23, the volume, the spectrum, the two level meters and the line File 2 of 9\" class=\"wp-image-1560\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_playing_v2.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_playing_v2-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_playing_v2-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">WMPLAY, the new full-screen MP3 player for DOS, while a song plays.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">An MP3 player inside the card<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The card reads and decodes the MP3 file itself. The PS\/2 only gives the orders: play, pause, next. It does not read the file and it does not decode it, so its processor does not matter, and a game or a DOS program keeps running while the music plays. The music is mixed with the other sounds of the card and comes out of the jack, the Micro Channel audio line or the Bluetooth headphones.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Copy your <code class=\"\" data-line=\"\">.mp3<\/code> files into a folder of the microSD card (<code class=\"\" data-line=\"\">MUSIC<\/code>, for example, next to <code class=\"\" data-line=\"\">FLOPPY<\/code> and <code class=\"\" data-line=\"\">HDD<\/code>) or onto a USB stick. Any bit rate, constant or variable, mono or stereo. Long names, spaces and accents are fine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">WMPLAY, the full-screen player<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Browse the folders of the microSD card, or of the USB stick with <strong>Tab<\/strong>, and press <strong>Enter<\/strong> to play.<\/li>\n\n\n\n<li>Pause, next, previous, volume, loop, and the whole folder plays in order.<\/li>\n\n\n\n<li>A progress bar with the time played and the length of the song; <strong>Left<\/strong> and <strong>Right<\/strong> jump 10 seconds.<\/li>\n\n\n\n<li>A <strong>48-band spectrum<\/strong> in the style of a hi-fi display, with peak marks that hang for two seconds, and two level meters. WMPLAY redraws a few characters of the VGA font for it and puts them back when it leaves.<\/li>\n\n\n\n<li>Long names scroll under the bar.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_spectrum_v2.gif\" alt=\"The spectrum of a song that plays for 6 seconds, then Space is pressed: the bands fall, the peak segments stay where they were for 2 seconds and come down\" class=\"wp-image-1569\" style=\"border-radius:6px\"\/><figcaption class=\"wp-element-caption\">The spectrum moves with the music; on a pause the bands fall and the peak marks follow.<\/figcaption><\/figure>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-405cbae6 wp-block-columns-is-layout-flex\" style=\"margin-top:32px;margin-bottom:32px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_folder_v2.png\" alt=\"A folder of the microSD card in WMPLAY: the row that leads back to the folder above, then nine songs from 01 Night Drive.mp3 to 09 Daybreak.mp3 with their sizes\" class=\"wp-image-1562\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_folder_v2.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_folder_v2-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_folder_v2-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Browsing a folder of the microSD card.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_usb_v2.png\" alt=\"Tab pressed: the top line reads USB, the list shows the folders and two MP3 files of the stick, while 05 Afterglow.mp3 of the microSD card goes on, 00:47\" class=\"wp-image-1574\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_usb_v2.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_usb_v2-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_wmplay_usb_v2-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Tab switches to the USB stick while the music goes on.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">From the DOS prompt and batch files<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code class=\"\" data-line=\"\">WMCTRL MP3<\/code> does the same with one command per action: <code class=\"\" data-line=\"\">play<\/code>, <code class=\"\" data-line=\"\">pause<\/code>, <code class=\"\" data-line=\"\">resume<\/code>, <code class=\"\" data-line=\"\">stop<\/code>, <code class=\"\" data-line=\"\">volume<\/code>, <code class=\"\" data-line=\"\">loop<\/code>, <code class=\"\" data-line=\"\">status<\/code> and <code class=\"\" data-line=\"\">dir<\/code>. Put <code class=\"\" data-line=\"\">WMCTRL MP3 PLAY MUSIC&#092;INTRO.MP3<\/code> in your <code class=\"\" data-line=\"\">AUTOEXEC.BAT<\/code> and the PS\/2 boots with music.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"400\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_dos_wmctrl_mp3_v2.png\" alt=\"The DOS prompt: wmctrl mp3 play answers that 01 Night Drive.mp3 plays (44100 Hz, stereo, 128 kbit\/s), then status, volume 60, pause, resume, loop on and stop with their answers\" class=\"wp-image-1591\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_dos_wmctrl_mp3_v2.png 720w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_dos_wmctrl_mp3_v2-300x167.png 300w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_dos_wmctrl_mp3_v2-600x333.png 600w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">WMCTRL MP3 at the DOS prompt.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">On the screenpad, without the PC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The screenpad has its own player under <strong>Audio &gt; MP3 player<\/strong>: the folders of the microSD card, <strong>ENT<\/strong> to play or pause, <strong>UP<\/strong> to stop, <strong>DN<\/strong> for the next file, the knob for the volume and a push on it to mute. The three players drive the same engine, so a song started from one shows on the others.<\/p>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-405cbae6 wp-block-columns-is-layout-flex\" style=\"margin-top:32px;margin-bottom:32px\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_list_music.png\" alt=\"The screenpad MP3 list in MUSIC: the row .., the folders Chiptunes, Demoscene 1993 and Empty, then the first file\" class=\"wp-image-1582\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_list_music.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_list_music-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">The folders and files of the microSD card on the screenpad.<\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"256\" src=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_player_playing.png\" alt=\"The screenpad player view: 03 Boss Fight.mp3, File 3 of 8, Playing 01:23\" class=\"wp-image-1602\" style=\"border-radius:6px\" srcset=\"https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_player_playing.png 512w, https:\/\/www.r3tr0.net\/wp-content\/uploads\/2026\/11\/wm_screenpad_mp3_player_playing-300x150.png 300w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><figcaption class=\"wp-element-caption\">The player view: the file, its place in the folder and the time.<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">The PS\/2&#8217;s sound on Bluetooth headphones<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A firmware with Bluetooth now streams the sound of the card to Bluetooth headphones or a Bluetooth speaker (A2DP). Everything the card plays goes there: the Sound Blaster, the AdLib, the Gravis UltraSound, the music of an audio CD and the MP3 player. DOOM in a pair of noise-cancelling headphones on a PS\/2 is a strange and wonderful experience.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Pair the headphones like any Bluetooth device, from the <strong>Bluetooth<\/strong> page of the setup menu or from the screenpad. They show as <strong>AUDIO<\/strong>.<\/li>\n\n\n\n<li>On the <strong>Audio<\/strong> page, set <strong>Output<\/strong> to <strong>BT<\/strong> (it goes <strong>Off<\/strong>, <strong>Jack<\/strong>, <strong>BT<\/strong>). The screenpad has the same row, and <code class=\"\" data-line=\"\">AUDIO_OUT BT<\/code> in <code class=\"\" data-line=\"\">config.txt<\/code> sets it at every start.<\/li>\n\n\n\n<li>The sound moves to the headphones at once, with no restart, and they say <strong>&#8220;Wonder Bluetooth&#8221;<\/strong> a few seconds later.<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <strong>Audio<\/strong> page shows the headphones next to <strong>Output<\/strong>: <strong>connecting<\/strong>, <strong>connected<\/strong>, <strong>playing<\/strong>, <strong>not connected<\/strong> or <strong>out of range<\/strong>.<\/li>\n\n\n\n<li><strong>Volume<\/strong>: headphones that accept the volume from the card (AVRCP absolute volume) follow the screenpad&#8217;s knob, and their own + and &#8211; keys move it. With other headphones the card sets the level of its sound itself (70 % at every start), and the headphones&#8217; keys work on top of it.<\/li>\n\n\n\n<li>At power-on, and whenever <strong>Output<\/strong> is set to <strong>BT<\/strong>, the card connects to the headphones by itself, and tries again every 10 seconds if they are off or out of range. Headphones that reconnect by themselves are accepted too.<\/li>\n\n\n\n<li>The headphones work together with the game pads, keyboards and mice: up to four Bluetooth devices at once, the headphones among them.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Under the hood, the RP2350 copies the card&#8217;s mix, resamples it to 48 kHz and encodes it in SBC, the codec every A2DP headset knows, at about 7 % of one of its cores, next to the bus work and the sound emulation. The radio is still the one of the WiFi module: no extra chip. It was tested on a real PS\/2 with a Bose QuietComfort headset, through DOOM and the MP3 player.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Game pads: Joypad OS, one week on<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Since the <a href=\"https:\/\/www.r3tr0.net\/index.php\/2026\/11\/06\/wondermca-bluetooth-keyboard-mouse-game-pad\/\">first Bluetooth post<\/a>, the pads that the card drives through the <a href=\"https:\/\/github.com\/joypad-ai\/joypad-os\">Joypad OS<\/a> drivers have met more real hardware:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>The Sony DualShock 3 works over Bluetooth.<\/strong> It has no Bluetooth pairing of its own: plug it once into the USB-A port of the card with Bluetooth on, and the card writes its own address into the pad and adds it to the paired devices. Unplug it, press <strong>PS<\/strong>, and it plays (Wolf3D, with its buttons).<\/li>\n\n\n\n<li><strong>Switch-style pads stay connected.<\/strong> The link drop of the first preview is fixed: a pad woken with <strong>Home<\/strong> reconnects and keeps reporting. The card also thins the flood of reports these pads send, so a game keeps its frame rate.<\/li>\n\n\n\n<li><strong>Four buttons on the game port.<\/strong> A, B, X and Y reach the four buttons of the PC game port (DOOM uses all four; Wolf3D needs its Gravis GamePad option for 3 and 4), and they are released when the pad leaves.<\/li>\n\n\n\n<li><strong>The blue LED of the screenpad<\/strong> now flashes briefly when a Bluetooth device sends input, instead of staying lit.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-ec65b531 wp-block-group-is-layout-constrained\" style=\"border-radius:6px;border-left-color:#f0b429;border-left-style:solid;border-left-width:4px;background-color:#fff8e1;margin-top:28px;margin-bottom:28px;padding-top:14px;padding-right:20px;padding-bottom:14px;padding-left:20px\">\n<p class=\"wp-block-paragraph\"><strong>Good to know: this is a preview.<\/strong> Bluetooth audio needs the 16-bit firmware with Bluetooth; one pair of headphones at a time, no microphone, and the play and track keys of the headphones are not used. The sound reaches the headphones a little later than the jack: fine for music, noticeable in an action game. With some files, an MP3 played over Bluetooth can sound slightly uneven; we are working on it. WMPLAY and <code class=\"\" data-line=\"\">WMCTRL MP3<\/code> have played on a real PS\/2; the screenpad&#8217;s MP3 player has not met one yet. Tell us what works with your headphones and pads.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What you need<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The <strong>preview firmware<\/strong> from the Preview section of the firmware page: the 16-bit firmware, in its Bluetooth version for the headphones and the pads. The CPLD does not change.<\/li>\n\n\n\n<li><code class=\"\" data-line=\"\">WMPLAY.EXE<\/code> and <code class=\"\" data-line=\"\">WMCTRL.EXE<\/code>, on the preview tools floppy image <code class=\"\" data-line=\"\">wmtools.img<\/code>.<\/li>\n\n\n\n<li>For Bluetooth: the network type <strong>WiFi<\/strong> or <strong>Radio only<\/strong>, and <strong>Bluetooth On<\/strong>.<\/li>\n\n\n\n<li>Some MP3 files on the microSD card or a USB stick.<\/li>\n<\/ol>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-ec65b531 wp-block-group-is-layout-constrained\" style=\"border-radius:6px;border-left-color:#1e7a45;border-left-style:solid;border-left-width:4px;background-color:#eaf6ee;margin-top:28px;margin-bottom:28px;padding-top:14px;padding-right:20px;padding-bottom:14px;padding-left:20px\">\n<p class=\"wp-block-paragraph\"><strong>Get started.<\/strong> The new <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_mp3-player\/\">MP3 player<\/a> page covers WMPLAY screen by screen, the keys, the messages and <code class=\"\" data-line=\"\">WMCTRL MP3<\/code>. The headphones are on the <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_sound-game-port\/#bluetooth-headphones\">Sound and game port<\/a> and <a href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_bluetooth\/\">Bluetooth<\/a> pages.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_mp3-player\/\" style=\"border-radius:6px\">Read the MP3 player page<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-documentation\/wmdoc_bluetooth\/\" style=\"border-radius:6px\">Bluetooth documentation<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.r3tr0.net\/index.php\/wondermca-firmware\/#preview\" style=\"border-radius:6px\">Preview firmware &amp; tools<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The WonderMCA now plays the MP3 files of its microSD card or USB stick, with WMPLAY, a full-screen DOS player with a 48-band spectrum, and on the screenpad. It streams everything it plays to Bluetooth headphones (A2DP), and the Joypad OS game pads gained the DualShock 3 and steadier Switch-style links.<\/p>\n","protected":false},"author":1,"featured_media":1560,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[20,43],"tags":[33,32,34,50],"class_list":["post-1659","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ibm-ps-2","category-wondermca","tag-ibm","tag-mca","tag-ps-2","tag-wondermca"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>WonderMCA: an MP3 player and Bluetooth headphones for your PS\/2 - R3TR0<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.r3tr0.net\/index.php\/2026\/11\/12\/wondermca-mp3-player-bluetooth-headphones\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"WonderMCA: an MP3 player and Bluetooth headphones for your PS\/2 - R3TR0\" \/>\n<meta property=\"og:description\" content=\"The WonderMCA now plays the MP3 files of its microSD card or USB stick, with WMPLAY, a full-screen DOS player with a 48-band spectrum, and on the screenpad. 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