Xo BS25 Sports Bluetooth Headset Black

Model: Bluetooth Name: xo-bs25■Dual channel system■ Bluetooth solution BK: 3266■ Bluetooth version: Bluetooth v5.0Receiving sensitivity: - 89dbm■ Bluetooth effective distance: rating 3-5mw■Frequency response: 50 Hz ~ 20 kHz■Speaker unit: copper ring full frequency horn Φ 10mm@16ohm■ Microphone Mic MEMS, capacitance mic, - 42db + - 2,■Built in battery: lithium battery - 3.7V, 120mAh■Standby time is about 40H■Music time: about 8 hours (80% volume)■ talk time: about 8 hours (80% volume)■Charging input standard: dc5v-500ma micro USB■Charging time: about 1.5 hours■Battery cycle life charge discharge cycle ≥ 300 times