Features: 1. The latest version of the Bluetooth chip, V5.0 + EDR, provides stable output. 2. Voice broadcast all the way. 3. With automatic shutdown and power-on function, which can save you worry and effort. 4. 550 mAh battery. 5. The call time is about 10 hours. Mobile phone hands-free speaker kit - Advanced multi-point connection, which can support two mobile phones online at the same time. Built-in DSP noise reduction and echo cancellation function. Specifications: Bluetooth transmission distance: 10M Speaker: 4Ω2W, HD stereo sound Size: about 100*60*21mm/3.94*2.36*0.83in Color: Black Charging time: about 2 hours Battery capacity: 550mAH Talk time: about 10 hours Standby time: up to 500 hours Bluetooth version: V5.0+EDR Transmission distance: 10M Package includes: 1 x Car charger Notes: 1. Due to the difference between different displays, the picture may not reflect the actual color of the product. We guarantee that the style is the same as shown in the pictures. 2. Please allow a slight dimensional difference due to different manual measurements.