(B) Launch mode use: A red LED flashes to indicate that it has switched to transmit mode. In the launch mode, the product will automatically search for other Bluetooth receiving devices that have been turned on (such as Bluetooth headset, Bluetooth speaker, Bluetooth receiver, etc.).
eBay
Long desktop dual speakers wired 1002, wireless Bluetooth 3511, USB-powered, AUX 3.5mm,LED lights 3D stereo laptop TV speaker
Aliexpress UK
The Bluetooth USB adapter adds Bluetooth connectivity to your PC, enabling wireless communication with a wide variety of Bluetooth devices. The adapter is drastically smaller than other USB adapters and can be left in the USB port of your computer.
eBay
XIKCU PC Soundbar Wired and Wireless Bluetooth Speaker USB Powered Soundbar for TV Pc Laptop Game Theater Surround Audio System
Aliexpress UK
Plug-and-Play Design – Easy to use via USB power and 3.5mm AUX connection. 1x AUX Cable (if included by the manufacturer). Bluetooth 5.0 Technology – Ensures stable and fast wireless audio transmission.
eBay
Portable CD boombox with cassette player and recorder CD radio FM AM with bluetooth and USB MP3,AC DC power with remote control
Aliexpress UK
User Tips: .
eBay
TD-V26 Mini FM Radio Portable Recargable Bluetooth Speaker USB TF MP3 Player with 3.5mm Earphone Jack Outdoor Radio FM Receiver
Aliexpress UK
Bluetooth 5.0 Car FM Transmitter – Music, Charging & Convenience in One! Upgrade your driving experience with this Bluetooth FM Transmitter — designed for seamless connectivity, fast charging, and hands-free convenience on every trip!
eBay
Professional Portable Wireless Vintage Bluetooth Speakers USB Card Wooden Outdoor Music Player Handle Grip Bass Audio
Aliexpress UK
Car Receiver USB Aux Adapter with Bluetooth 5.3 – Wireless Audio & Hands-Free Calling. Simply plug it into any USB port and stream high-quality wireless audio through your 3.5mm AUX input. Universal Compatibility : Compatible with car stereos, speakers, or any device with a 3.5mm AUX input.
eBay
Hippcron 7‘’ 1din Wired Carplay Android Auto Car Radio Multimedia Bluetooth Player USB Mirror Link FM AUX Universal For Camera
Aliexpress UK
eBay
Philips EXP5608 CD Speaker Convenient Wireless Bluetooth CD/USB/TF Home Desktop Audio HiFi Stereo MP3 Loudspeaker Long Standby
Aliexpress UK
Easy and simple to upgrade your car stereo Bt hands-free wireless audio! - Play your smartphone and other devices with Bt products to music on, you can make your way through the wireless from your car stereo to play back synchronized to music on your smart device!
eBay
PC Soundbar Wired and Wireless Bluetooth Speaker USB Powered Soundbar for TV Pc Laptop Gaming Home Theater Surround Audio System
Aliexpress UK