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.
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Bluetooth 5.4 Audio Receiver Transmitter Stereo Music Hansfree Call 3.5mm AUX Jack USB Dongle Wireless Adapter For TV PC Car Kit
Aliexpress UK
Connect the product to a device such as a TV with a 3.5 audio cable/RCA audio cable. This portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses.
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Bluetooth 5.2 Audio Receiver Transmitter 3.5MM 3.5 AUX With Mic Stereo Music Wireless Adapter For Headphones PC TV Car Speakers
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.
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Upgraded Bluetooth 5.3 Audio Transmitter Receiver RCA 3.5mm AUX Jack USB Dongle Music Wireless Adapter For Car PC TV Headphones
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.
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2 In 1 USB Bluetooth 5.0 Audio Receiver Transmitter 3.5mm AUX Stereo Music Wireless Adapter With Mic For Car Kit Speaker TV PC
Aliexpress UK
Wireless Bluetooth 5.0 Transmitter Receiver Stereo Audio Music Adapter For Car TV PC Headphones Speakers Support FM TF Card. 4 in 1, Support Bluetooth reception (RX) and Bluetooth transmission (TX), FM transmission, TF card playback, function 4 in 1.
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2 In 1 Bluetooth 5.2 Audio Transmitter Receiver 5 EQ Modes 3.5mm AUX RCA Jack Stereo Wireless Adapter for TV PC Car Kit Speaker
Aliexpress UK
Use B03+ as a Bluetooth Transmitter can also be used to connect Bluetooth headphones or Bluetooth speakers to your existing TV. Dual link feature of 1Mii B03Pro+ Bluetooth transmitter receiver also enables simultaneous streaming to 2 headphones or speakers.
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Bluetooth 5.4 Aux Adapter Audio Receiver Transmitter 3.5mm Jack LED Display for Car/Home Stereo/Wired Headphones/Speaker/TV
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.
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Bluetooth 5.0 Audio Transmitter Receiver 3.5mm AUX Jack RCA Stereo Airplane Wireless Adapter For Car kit Speaker TV PC Headphone
Aliexpress UK
Plug and Play: Remove the adapter from the USB port and insert it again to switch transmitter / receiver mode. Red light is transmitter mode, blue light is receiver mode. No driver required, easy to use.
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Bluetooth 5.4 Receiver Transmitter Low Latency 3.5mm AUX Jack Wireless Audio Adapter For TV Airplane Car Speaker PC Headphones
Aliexpress UK