Description: Bluetooth 5.0 Transmission: Stable 10m signal transmission without lag, high-fidelity stereo sound, noise isolation. Fast Pairing & Auto Reconnection: The bluetooth adapter will actively connect to your phone when you use it for the second time, and it will automatically connect with your phone when you turn on the car. 2 Phones Connection: Users can pair and share two devices at the same time, easy to operation. Hands-free Call: Built-in noise reduction microphone, allows you to enjoy phone calls straightly through the car's speakers, ensure driving safety. Plug & Play: Just plug it into the 3.5mm aux jack and power it by the USB port, no battery needed. Specification: Input voltage: 5V Bluetooth version: 5.0 Output interface: 3.5mm audio Signal to noise ratio: ≥90dB Frequency response: 20Hz-20KHz Transmission distance: 10m Power supply interface: USB2.0 Product Size: Natural length: 31cm/12.20inch Stretching length: 1.5m/4.92feet Material: Zinc Alloy Package Includes: 1x Car Bluetooth Receiver Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!