Built-in 8mm large size in cavity moving coil unit, bass performance is better, with high sensitivity composite diaphragm shows rich music details, alcohol sound experience Fingerprint touch design, abandon physical keys to reduce the mistake, no pressure pain, natural and comfortable Advanced Bluetooth-compatible 5.3 wireless transmission technology, 10m transmission distance without delay line, continuously stable connection Long press to switch game mode, using intelligent algorithm The left and right ears are equipped with independent chips, providing more stable wireless signal transmission and easy implementation. The seamless switching between single and double ears ensures uninterrupted communication or listening to music Specifications: Bluetooth-compatible version: 5.3 Speaker: φ8mm Earphone battery: 35mAh Charging case battery: 200mAh Music time: 4 hours Talk time: 4 hours Earphone charging time: about 40 minutes Charging case charging time: about 2 hours Communication distance: 10M Charging interface: Type-C Charging voltage: DC5V/1A Package included:2 x Bluetooth-compatible Earphones2 x Pairs of Eartip Cap1 x Charging Case1 x Charging Cable1 x English User ManualOther items not include