Features: Brand new and high quality High-performance version Bluetooth compatible chip V5.0+EDR, stable output power. Omnidirectional microphone design, calls are as clear as face to face. Full voice transmission, never miss any calls. Automatic switch, labor-saving and worry-free. for compatible with Apple Siri voice control. 550mAh battery, 500 hours of battery life. Continuous call for about 10 hours. Built-in digital amplifier greatly improves the volume and sound effects. Advanced multi-point connection, supports two mobile phones online at the same time. Built-in DSP noise reduction and echo cancellation (CVC8.0 dual noise reduction technology). Specifications: Bluetooth compatible version: V5.0 + EDR Battery type: 550mah Color: Black Charging time: 2 hours Talk time: 10 hours Standby time: up to 500 hours Bluetooth compatible transmission distance: 10M Speaker: 4Ω2W, high-definition stereo Size: approx. 100x60x21mm/3.94x2.36x0.83in Note: Light and different monitors may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm. Package includes: 1 x Bluetooth 5.0 Car Kit 1 x Micro USB Charging Cable 1 x Visor Clip 1 x User Manual