Bluetooth receiving (RX) and Bluetooth transmitting (TX) two-in-one design. 1 x Wireless Transmitter Receiver Adapter. Equipped with a high-definition LED digital display screen, the full-screen display of the working status and Bluetooth mode is clearly visible.
eBay
eppfun LE Audio LC3 Bluetooth5.4 Audio Transmitter aptX-LL/HD Type-c Wireless Stereo Music Adapter with Auracast for PC TV PS4/5
Aliexpress UK
Connects via 3.5mm audio jack, RCA for universal compatibility with TVs and other devices. Functions: TF Card, hands-free call, NFC connection. 3-IN-1 Design support Bluetooth receiving (RX), Bluetooth transmitter (TX), And TF card transmitter mode.
eBay
50M 2.4G Digital Wireless Audio Transmitter And Receiver Wireless Audio Adapter With 3.5mm R/L RCA Converter For TV Box DVD PC
Aliexpress UK
3 in 1 Transmitter Receiver: The USB Bluetooth 5.0 audio transmitter receiver can transmit audio from non-Bluetooth audio sources (TV, PC, MP3, CD player or book reader, etc.) to Bluetooth headsets and speakers.
eBay
Essager USB Bluetooth 5.3 Adapter Aux Audio Receiver Transmitter For PC Speaker Laptop soundbox Wireless Mouse USB Transmitter
Aliexpress UK
Make the old speaker device work like a Bluetooth device. The transmitter mode is suitable for: TV/computer/projector/amplifier/TV box/Bluetooth earphones/headphones/Bluetooth speakers, etc. DAC converter, supporting signal conversion from digital optical coaxial audio to RCA 3.5mm or R/Analog audio.
eBay
USB Bluetooth 5.4 5.3 Adapter Aux Audio Receiver Transmitter For PC Speaker Laptop soundbox Wireless Mouse USB Transmitter
Aliexpress UK
1 5.0 Bluetooth receiver transmitter. Function: Audio receiver transmitter three in one. Insert one end of the 3.5mm audio cable into the AUX interface of the adapter, and the other end into the audio output port of devices such as TV, projector, tablet, MP3 player, CD player, or RCA audio signal output port of the TV;.
eBay
Essager USB Bluetooth 5.3 Adapter Aux Audio Receiver Transmitter For PC Speaker Laptop Wireless Mouse soundbox USB Transmitter
Aliexpress UK
Appears to be in very good condition. Powers on, not tested further. I do not know if it works. Minor marks.
eBay
USB Bluetooth 5.3 Adapter Aux Audio Receiver Transmitter For PC Speaker Laptop soundbox Wireless Mouse Keyboard USB Transmitter
Aliexpress UK
Bluetooth 5.3 Audio Transmitter Receiver 3.5MM AUX HiFi Music Wireless Adapter. 3 in 1 USB Bluetooth 5.0 Audio Transmitter Receiver Adapter For TV PC Car AUX. New Multi functional Bluetooth 5.0 Bluetooth Transmitter Receiver 2-in-1.
eBay
USB Bluetooth 6.0 Adapter Aux Audio Receiver Transmitter For PC Speaker Laptop Wireless Mouse USB Transmitter Adapter
Aliexpress UK
📶 Fast & Stable Connection | 🎧 3-in-1 Versatility | 📡 10m Long-Range | 🔌 Plug & Play. Bluetooth Transmission Range : Up to 10m. Tired of being tied down by wires?. Bluetooth 5.3 3-in-1 Wireless Audio Adapter | Transmitter/Receiver with TF Card Play & Hands-Free Call.
eBay
USB Bluetooth 5.4 Adapter Music Audio Receiver Transmitter For PC Speaker Laptop soundbox Wireless Mouse USB Transmitter
Aliexpress UK