BT 5.0 technology brings high-speed data transfer speed, stable performance, and low consumption, offering real-time transmission of call and games, no voice delay. With technology, left and right earphone channels are separated. You can use the headset solely or used them in pairs. Equipped with a 280 mAh box to charge the Headphone. Built-in Microphone delivers clearer and more real talking sound. It will bring you perfect user experience.