The user's voice can be transmitted through the USB Bluetooth adapter microphone, and the other party's voice can be played through the car speaker or other audio speaker devices connected by the user.
eBay
USB Optical Wireless Bluetooth Transmitter 2 in 1 Audio Transmitter Adapter Low Lantency For TV PC USB Wireless Audio Adapter
Aliexpress UK
Bluetooth version 5.3: The new Bluetooth 5.3 wireless transmission technology is used to bring more stable audio transmission capability. Bluetooth version :5.3. Bluetooth delay: less than 180ms. Answer a call: Tap the Multifunction key to answer the call.
eBay
Salange Sound Bar Bluetooth USB Wired Speakers Bar Stereo Speaker For Projector PC Laptop Phone Computer 3.5mm Aux Speaker
Aliexpress UK
For connection between wireless card to motherboard. Card and motherboard in pictures is for demo only, not for sale. 1 x USB bluetooth cable. Born from a passion for technology, we embarked on a mission to provide enthusiasts and professionals alike with top-tier computer parts and accessories.
eBay
HI FI Dual ES9038PRO Core DAC Decoder Board For HI END Audio Amplifier Home Theater Bluetooth USB Card PCM 1536 DSD 1024
Aliexpress UK
The product is a Bluetooth receiver, connected by RAC cable and AUX audio cable. Interface Type-c: AUX+RAC. AUX connection line 1. Improve the performance of devices without Bluetooth function. Bluetooth receiver 1.
eBay
Zishan d1c ak4499 desktop HIFI decoding coaxial fiber Bluetooth USB hard drive DSD music player
Aliexpress UK
Playing Music on 2 Speakers Simultaneously: With both 3.5mm and 2RCA 2 kinds of connection options, you can enjoy music on 2 speakers simultaneously. Audio Interface: 3.5 + 2RCA. 1 x 2RCA Audio Cable.
eBay
1600W Peak HiFi Sound Amplifier FM USB Remote Control Bluetooth Karaoke Player 4 Channel HiFi Stereo AMP Audio Amplifier
Aliexpress UK
Bluetooth Transmitter is specially designed for the Audio Devices (such as MP3, MP4, TV and PC, etc.) without Bluetooth function. You can connect the Bluetooth Transmitter to the audio devices via the included 3.5mm Audio Plug.
eBay
Musehifi M5 Ultra HiFi JAN6418 Vacuum Tubes Bluetooth USB DAC AMP For Android iPhone | QC4.0+PD Fast-Charging 3.5mm+4.4mm
Aliexpress UK
Interface: 2RCA left and right channels, 3.5 audio port. 1 x 2RCA Audio Cable. The NFC bluetooth audio adapter turns wired speakers into wireless bluetooth speakers in seconds. The new 5.0 Bluetooth uses industrial-grade power isolation technology.
eBay
Multi-functional CD Player DVD/VCD AV Player Wireless Bluetooth USB Built-in Speaker Rechargeable Audio Player
Aliexpress UK
Stable connection and subwoofer mode: With Bluetooth 5.0, the Bluetooth stereo receiver provides a more stable connection without lag or lag. The 3D button is designed for bass-heavy mode, providing powerful and heavy music in addition to crystal clear sound.
eBay
Professional Cd Player VCD Portable Player Portátil Bluetooth USB Drive Players High Quality Discdream Dvd Player with Screen
Aliexpress UK