High Performance: chip V5.0 and EDR can obtain more stable audio streaming and lower power consumption, and output performance is stable. Noise Reduction: Omni directional microphone design, built in digital power amplifier, greatly enhance the volume and sound effect, clear calls. Private Protection: The headset can quickly switch private calls, it can be used independently from the host, convenient to use. Auto Connecting: The intelligent vibration induction is turned on, and the vehicle is automatically connected after starting; advanced multi point connection, supports two mobile phones online at the same time. Wide Application: 1200mAh battery, battery life up to 20 hours. Equipped with metal back clip, no damage, easy installation. Can be used for trucks, buses, pickup trucks, cars