(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.).
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Wireless CarPlay Adapter for Android 13 - Open-Ended Smart Car Module with Bluetooth/WiFi
Aliexpress UK
Supports all with AUX input of the car stereo! - 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.
eBay
2in1 Wireless CarPlay Dongle for Wired Original Car Radio to Wireless CarPlay Android Auto Bluetooth Plug and Play Mini Adapter
Aliexpress UK
🚗 Wireless In-Car Bluetooth FM AUX Adapter 🚗. 1 x Wireless Bluetooth FM Transmitter Adapter. Connectivity Bluetooth + AUX + USB Bluetooth only. 🚀Why Choose This Bluetooth Car Adapter?. [Noise Canceling] [Enhanced Mic] [LED Display] [Bluetooth 5.3] [48W Fast Charging].
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VR Robot PD30W+QC 3.0 Bluetooth 5.4 Car MP3 Player FM Transmitter Wireless Handsfree U Disk Play USB Car Fast Charge Adapter
Aliexpress UK
Bluetooth 4 Aux In Adapter for BMW E Series.
eBay
USB Bluetooth 5.0 Transmitter Receiver Mic 3 in 1 EDR Adapter Dongle 3.5mm AUX for TV PC Headphones Home Stereo Car HIFI Audio
Aliexpress UK
The 2in1 Bluetooth transmitter receiver adapter is small, but has got powerful wireless audio streaming capabilities. 1x 2in1 Bluetooth Audio Transmitter/Receiver Adapter. - Switch between transmitter and receiver modes with the simple flick of a switch.
eBay
Car Dab/dab+ Radio Adapter 2.4" Lcd Bluetooth-compatible Fm Transmitter Handsfree with Usb Port/sd Card/aux DropShipping
Aliexpress UK
The chip integrates a low-power MCU, RF transceiver, baseband, modem, USB, UART, PCM / I2S, SARADC, low-power flexible and powerful Bluetooth application. 1 ×Bluetooth adapter. Compatible with Bluetooth 2.1, 3.0, 4.0, 4.1, 4.2, and 5.0 specifications.
eBay
Xiaomi FM Transmitter Bluetooth 5.4 Hands-Free Portable Car AUX Radio Modulator MP3 Player with Fast Charging Adapter
Aliexpress UK
Upgrade your PC's connectivity with thislatest-gen Bluetooth 5.4 Adapter – the perfect dongle for smooth, lag-free wireless connection to your favorite devices. Bluetooth Version: 5.4 (Dual-mode, low power, ultra low latency).
eBay
3.5mm Car External Microphone Bluetooth-compatible Car Dashboard or Sun-Visor Mic Stereo Radio GPS Adapter
Aliexpress UK
Bluetooth Adapter 5.4：Adapter applies the latest Bluetooth 5.4+EDR adapter, Bluetooth low energy. With the enhanced Data Rate (EDR) support, Its greatly improved the data transmission rate of Bluetooth technology and operates at the optimal rate of power consumption.
eBay
Car Bluetooth 5.3 Transmitter Receiver Handsfree Call Mini USB Power Car Kit Auto Stereo Wireless Audio Adapter For Car Fm Radio
Aliexpress UK