This BT 5.0 Headset supports BT connection, AUX wired connection and TF card playing, free to switch. And you can control it at 4 buttons. Besides, it is foldable, take it anywhere. Feature: BT 5.0 It consumes lower power, offers higher transmitting rate and wide compatibility. 3 Playing Modes It supports BT connection, AUX wired connection and TF card playing, free to change among them to fulfil your need. Foldable & Stretchable You can fold it to save space and take it with you anywhere. And with stretchable headband, you can adjust it to fit your head. Comfortable to Wear With soft ear pads, it enables you to wear it for a long time without fatigue. Easy to Control You can press the specific buttons to quickly change playing modes, play/pause music, change among songs and adjust volume. Specification: Color: Black, Black&Red, Red, White, Blue (Optional) BT version: V5.0 Operating distance: 10m (No obstacles) Battery capacity: 400mAh Charging time: Approx. 2hrs Packing list: 1 * BT