Features: 1. Uses Bluetooth main chip, Bluetooth version 5.0, high-speed transmission without distortion, sound quality can reach HD standards. 2. This product supports efficient music transfer, Bluetooth version 5.0, backward compatible with earlier versions. 3. Bluetooth AUX cable adapter suitable for aftermarket CD players such as Pioneer and other navigation systems. Ideal for cars with an audio input featuring a female Aux jack on the back, allowing connection via a male plug to enable Bluetooth music playback. 4. Pair your phone or tablet to the Bluetooth module, then select Aux on your car radio to play audio from your device through the car speakers. 5. Simply insert this unit into the back of the car radio, connect the red wire to 12V+ and the black wire to 12V-. Specifications: - Applicable models: Suitable for most vehicles equipped with an Aux input interface - Bluetooth name: Jierui-Bt 5908 - Bluetooth version: 5.0 - Product voltage: 5-12V - Overall length: 24cm - Material: PVC + Copper - Color: Black Package Contents: 1 x Wireless Bluetooth Audio Receiver Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3cm.