Features: The internal BT5.0 chip offers a 8-10m stable connection without delay. Built-in noise reduction sound pickup microphone, allows you to enjoy phone calls with hands-free calling straight through the car's speakers, delivering clear, functional, and enjoyable sound. This BT adapter allows users to pair and share two devices at the same time without any trouble. Made of zinc alloy shell and 3.5mm gold-plated plug, strong texture, wear-resistant and scratch-proof, greatly enhance the durability of the product. Plug and play, just plug it into the 3.5mm aux jack and power it by the USB port, no battery required. It will automatically connect with your phone when you turn on the car. Adopt 0.3M-1.5M high resilience TPE cable, strong elasticity, anti-winding, resistant to bending, to meet your needs on different occasions. Specification: Type: Vehicle-mounted BT receiver BT version: V5.0 Transmission distance: 8-10m Signal to noise ratio: 90dB Frequency response: 20Hz-20KHz Input interface: 3.5mm audio interface Power port: USB2.0 Cable length: 0.3M-1.5M Packing list: 1 * BT receiver