Four-in-one: Bluetooth-compatible reception (RX), Bluetooth-compatible transmission (TX), microphone singing, FM radio four-in-one design. Support USB (USB flash drive) and TF card playback and transmission.
eBay
P47 Bluetooth 5.0 Wireless Headphone Foldable HIFI Stereo Bass Earphone Kid Helmet Gift With Mic USB Adaptor For iPhone Game
Aliexpress UK
Smooth, rich, balanced sound with pleasant spatial sense and astounding clarity. Bright digital LED display for easy viewing of settings changes. Connect to your music streaming devices like PC, smartphone, or laptop via Bluetooth-Compatible, 3.5mm AUX, or RCA inputs.
eBay
ABS Portable And Convenient AUX IN Bluetooth Adapter For Volvo C30 C70 S40 S60 Car Audio Receiver
Aliexpress UK
5.1 Bluetooth Audio Receiver for Car, Stereo, Amplifier, Wired Headphones, Car Jack 3.5mm Bluetooth Audio Adapter, Stereo, Hands Free Calling in Car, Long Lasting Range, Low Latency. Multiple Scenario Use: Connect the 3.5mm audio inlet to audio playback devices with speakers (e.g. car stereo, old-fashioned stereo, wired headphones), receive Bluetooth information to play music wirelessly.
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Car Wireless Bluetooth Module Music E93 3.5Mm Receiver Aux E92 For Bmw Usb E90 Audio E91 Auxiliary Adapter A3I3
Aliexpress UK
Audio Converter Adapter AptX-HD Audio Adapter with 3.5mm Aux Toslink/Coaxial Output Bluetooth-compatible for Projector Amplifier. Audio Receiver: Bluetooth-compatible 5.2 chip, 15M transmission distance, stable transmission signal.
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RCD310 RCD510 RNS510 Car Radio Audio Music Device Bluetooth 5.0 Handsfree Aux Adapter Harness Wire for Volkswagen Skoda
Aliexpress UK
The installation is very simple, just connect the transmitter to the socket and audio system, and pair it with Bluetooth-Compatible headphones/speakers to play music. Audio Receiver Adapter5.2 Bluetooth-Compatible AUX /OpticalFiber /Coaxial USB Wireless Audio Adapter 16 Bit for Audio/Amplifier.
eBay
P47 Bluetooth 5.0 Wireless Headphone Foldable HIFI Stereo Bass Earphone Kid Helmet Gift With Mic USB Adaptor For iPhone Game
Aliexpress UK
Aux BT 5.0 Car Adapter Wireless USB To 3.5mm Jack Wireless Audio Receiver Dongle For Car Hands free Adapter. Easy Installation: This dongle is designed for a user-friendly setup. Simply plug it into your car's USB port and connect it to your car's audio system via the 3.5mm jack.
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【RU special】 UGREEN RCA Bluetooth aptX / aptX HD For Speaker Earphones Adapter
Aliexpress UK
Receiver Adapter USB Stable Receiver Connector Bluetooth-Compatible Portable Lightweight Noiseless Strong Signal for Car Speaker. Multipurpose: Supports car audio hands-free calls, connects the Bluetooth Compatible receiver to the car USB interface, and connects through Bluetooth Compatible to make calls while listening to music.
eBay
Bluetooth 5.0 FM Transmitter Handsfree Car Radio Modulator MP3 Player With 22.5W USB Super Quick Charge Adapter for Car
Aliexpress UK
Smooth, rich, balanced sound with pleasant spatial sense and astounding clarity. Bright digital LED display for easy viewing of settings changes. Connect to your music streaming devices like PC, smartphone, or laptop via Bluetooth-Compatible, 3.5mm AUX, or RCA inputs.
eBay
Car Mini USB Transmitter Receiver Bluetooth 5.3 Car Adapter Wireless Handsfree Call Car Kit Auto Wireless Audio for Fm Radio
Aliexpress UK