Lightweight And Sturdy: Our sports clip-on earphones weigh 15g, ergonomic and comfortable, open earbuds keep running relaxed, pain-free design. Compared to over-ear headphones, wireless clip-on bone conduction running headphones allow you to wear them anywhere, even if you wear glasses Long battery life: 15 hours of earbud music time, built-in 75mAh high-capacity battery, charging through Type-C data cable, one charge allows you to enjoy longer battery life. Keep you away from the trouble of frequent charging Clear calls: The advanced Bluetooth-compatible 5.3 headset can greatly reduce natural sound leakage, providing you with premium sound quality. 2 built-in microphones for clearer calls, so you can hear your talk as clearly as if you were talking face-to-face Smart touch: completely wireless earphones Smart touch operation design, easy to operate, adjustable volume/music play/pause, call/telephone/reject/second/previous/Siri start and other operations Specifications: Channel system: wireless stereo Control method: touch Bluetooth-compatible version: Bluetooth-compatible V5.3 Bluetooth-compatible effective distance: 10 meters Speaker power: 3mW Audio signal-to-noise ratio: 90dB Frequency response: 50Hz~20KHz Speaker unit: full frequency speaker 13mm, 32ohm Microphone: -42dB3dB Battery capacity: 75mAh Music time: about 15 hours Talk time: about 10 hours Charging time: about 2 hours Battery cycle life: charge and discharge cycle 300 times Package included: 1 x Bluetooth-compatible Headset 1 x Charging Cable 1 x English and Chinese User Manual