Features: Plug and Play Wireless A2DP Playback: Easily stream music from Bluetooth devices to your factory car stereo system. Adopts Bluetooth 5.0 protocol, backward compatible with Bluetooth 2.0, 3.0, and 4.0 versions. Supports common MP3 format and also supports WMA, WAV, FLAC, and other high-quality o format decoding, providing superior sound performance compared to standard Bluetooth functions. Ensures stable data transmission speed between devices with high fidelity. Works with iPod, HTC, Nokia, and other phones or tablets (ensure your device has Bluetooth functionality). Cable length: approximately 20cm. Note: Control remains on your phone; no text will appear on the radio (change songs using your phone). Compatibility: Compatible with models CDX-M770, CDX-M800, CDX-M850MP, CDX-M8800, CDX-M8810, CDX-M8815X, CDX-M9900, CDX-M9905X. Usage: 1. Connect the two wires to a 12V power source and pair the Bluetooth with your phone. 2. Select AUX on your radio to play music from your phone in your car. Package included: 1 x Bluetooth Adapter