Overview Bluetooth 5.1 has strong performance, greatly improves transmission distance, enhances signal stability & anti-interference ability, & reduces standby power consumption. High definition LED digital power display shows the remaining power of charging bin at a glance. The headset is taken out from the charging compartment, & the phone is automatically switched on & matched. Magnetic induction storage bin, no pressure press, easy to open the door, greatly increase the use experience. The large capacity charging chamber can charge the earphone about 40 times under full charge. Hi Fi high fidelity sound effect, dynamic unit design, good audio analysis, no distortion of details, excellent listening experience. IPX7 waterproof & sweat-proof, multi process design head body, effectively prevent sweat from damaging components. Specifications: Noise reduction version: cvc 8.0 Working distance: within 10m Earphone battery capacity: 50mah each Charging box battery capacity: 2000m Ah