I have tried using the mini disc with the gum stick battery and it shows no response. HOWEVER with the base external battery case ! The mini disc player works flawless.
eBay
New 32GB 2.4 Inch Touch Screen Bluetooth 5.4 MP3 Player, HiFi Music Player with Speaker/Recorder/E-Book/Picture
Aliexpress UK
eBay
1.78'' Touch Screen MP3 MP4 Player Bluetooth 5.2 HiFi Music Player Built-in Speaker With E-book /FM/Radio/Video/Recorder 8-128GB
Aliexpress UK
One has a battery but likely dead and needs charging or new battery. May work if batteries inserted and tested with mini discs?. Units only, no other accessories included.
eBay
Hifi Walker G7 MP4 Player with Bluetooth Speaker, Android 13, Wifi, Spotify, Tidal Supported, Portable Audio Player
Aliexpress UK
The Kenwood DMF-3020 is a high-quality stereo MiniDisc recorder and player, offering superior sound quality through its HiFi capabilities. This model is perfect for music enthusiasts looking to enjoy their favourite vinyl records with modern technology. The Kenwood brand is known for its reliability and durability, making this device a great addition to any home audio setup. Some wear and tear . See pictures
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1.8-inch portable MP3 Player TF Card Music Video Player E-Book Reader Voice Recorder Radio Dictionary Touch Bluetooth Student
Aliexpress UK
TheSony MZ-N710 MiniDisc Player/Recorder Walkman is a portable audio device that allows you to play and record music on MiniDiscs. SonyMZ-N710 M iniDisc player and recorder in silver. 7x sealed blank MiniDiscs (Sony & TDK).
eBay
Portable MP4/MP3 player bluetooth speakers & wifi, music player with video, FM radio, eBooks, Recorder, capacity up to 512 GB
Aliexpress UK
Tested an working. Player only, no battery or accessories included. Has scratches/discolorations. Photo contents only.
eBay
CD VCD DVD Player Lens Cleaner Audio Cassette Tape Head Cleaner Demagnetizer Audio Cassette Tape Player Wet/dry Head Cleaner
Aliexpress UK
Sony MZ-R501 MiniDisc Recorder – Portable MD Walkman Player – Tested & Working
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MP3 MP4 Player Lossless Music Player with Speaker Bluetooth-Compatible HiFi MP4 Walkman Support FM Radio Recording E-Book
Aliexpress UK
The Vintage Sony MZ-N710 Walkman MiniDisc Recorder is a silver portable device made in Japan. It features a Micro USB for connectivity, a headphone jack, and is part of the Walkman product line. The device is designed to play MiniDiscs and has recording capabilities. Please note that testing information is not provided.
eBay
MP3 Bluetooth player Type-C port for fast charging 5.4 Bluetooth version expandable memory card music player FM recording e-book
Aliexpress UK