[Advanced Bluetooth 5.3 Stable Connection]The wireless earphones are equipped with an advanced Bluetooth 5.3 chip for fast signal transmission and stable connection with a range of up to 33 feet (10 meters). [Professional IPX5 Sports Waterproof] The open earphones wireless Bluetooth with microphone have an IPX5 waterproof rating, which is perfect for people who like sports, running, cycling, hiking, skiing, snowboarding, exercising! The Bluetooth earphones with noise reduction microphone are the partner for offices, meetings, truck drivers, online teaching, call centers, home work. (Note: It can only prevent a small amount of sweat and rain, swimming is not recommended!) [Durable and long life] The Bluetooth earphones with microphone are durable, built-in high-capacity 150mAh rechargeable lithium-ion battery, standby time up to 200 hours, Type-C USB fast charging for about 1.5 hours, you can enjoy 12 hours of uninterrupted music/calls. Product name: Bluetooth headset Product type: Over-ear type Product model: G9 Bluetooth version: 5.3 Transmission distance: 10 meters Bluetooth protocol: A2DP AVRCP HFP HSP Battery capacity: 150mAh Working time: 12 hours Charging time: 1.5 hours Standby time: 200 hours Charging port: type-c Output power: 66mW Frequency response: 20Hz-20000KHz Speaker size: 15.4mm Speaker impedance: 30Ω Colour:Black Material:ABS Package Contents: 1 x wireless microphone headset 1 x charging cable