features * UP TO 8 HOURS OF MUSIC LISTENING * HIGH QUALITY OF VOICE CALLS * BLUETOOTH 5.3 WIRELESS CONNECTION * The headphones provide exceptional wearing comfort. Even when using them for a long       time, they do not cause discomfort. Shape-memory silicone adapts exactly to the shape       of the ear. * for Video Game,Common Headphone,For Mobile Phone,HiFi Headphone,Sport,For Outdoor,For Office,For Study Communication : Wireless Bluetooth 5.1 Impedance (ohms): 32 Connectors: 1 x USB Type-C frequency response: 20Hz - 20kHz Reception: 10 meters Working time: 7h Charging time: 2h Microphone: Yes, built-in Battery: 300mAh Material: plastic