Android Smartphones/Tablet don't need download app, but need OTG function (NOT compatible with iPhone or iPad with lightning connector). and other OTG enabled USB C phones/tablets. OTG USB C Smartphone/Tablet .
eBay
8000W Bluetooth Amplifiers Support 4 Way Microphone Input USB SD FM AUX Digital Audio Stereo Amplificador Speaker Remote Control
Aliexpress UK
Plug and Play: No exact App, driver, and power required. With the built-in cable design, every worry about interrupting neighboring ports on your device is more convenient and effective.
eBay
MKV H.264 HDD Multimedia Player Full HD 1080P USB External Media Player TV Box With SD Media Support RMVB WMV HDD Player K19
Aliexpress UK
This versatile card reader is equipped with four slots for SD, TF, CF, and MS cards, allowing you to read and write to all four cards simultaneously. Compatible with SD/SDHC/SDXC, Micro SD, MMC, Micro SDXC, MS Duo, MS Pro Duo, CF cards, and more.
eBay
# TSN-1 Portable Speaker Wireless Bluetooth Speakers with 5.3 Stereo FM/SD/USB Disk/Aux Modes Waterproof for Outdoor Hifi Sound
Aliexpress UK
The Unisheen HDMI Video Recorder is a video capture device that allows users to easily record digital videos in HDMI format to SD cards or USB sticks. Can be plugged directly into HDMI TV and record directly onto SD card or USB Stick, in fact anything with a standard HDMI output can be recorded including stereo sound.
eBay
LEPY LP-269PRO 4.1 Channel Amplifier Bluetooth 5.0 Coaxial In USB SD FM Function Subwoofer Output Home Theater Sound System
Aliexpress UK
Add To Favorites. We will work with you to resolve any problem you may have. Item Specification.
eBay
DC 5V 12V Bluetooth 5.0 MP3 WMA Decoder Board Audio Module Color Screen Support USB SD AUX FM Audio Radio Module Car Mp3 Player
Aliexpress UK
UGREEN SD Card Reader, Aluminum USB C to Micro SD/SD Card Adapter, with 15CM Cable, Thunderbolt 3 for TF/UHS-I/SDXC/SDHC/MMC Card, Compatible with iPhone 15/Pro Max/Pro, iPad Pro, MacBook Pro/Air. ONLY supports FAT32/EXFAT cards on phones and tablets, NTFS is NOT supported.
eBay
Sunbuck AV-80/298BT 2000W Bluetooth Stereo Amplifiers High-Power Professional HiFi Amp With Remote Control FM USB SD 2 Mic input
Aliexpress UK
We really appreciate that. unpaid orders will be canceled after 24 hours.
eBay
Full HD 1080P USB External Media Player With SD Media Box Support MKV H.264 RMVB WMV HDD Media Player For Car HDDK7
Aliexpress UK
Directly insert the TF card to watch the video on the driving recorder. 1 OTG Micro SD Card Reader. Product gross weight: 15g. The product design is inspired by the rear wing of a sports car, reflecting the fast data transmission speed It is beautiful and can be used as a hanging hole.
eBay
2000W power amplifier 2.0 Channel Audio Home Theater Amplifiers DC 12V 110V/220V Support EQ FM SD USB 2 Mic 5.0 bluetooth
Aliexpress UK