Highlights Bluetooth 5.3 Technology: Enjoy stable and fast wireless connectivity with the latest Bluetooth version. Long Battery Life: Up to 25 hours of music time and 13 hours of call time with a 300mAh battery capacity. Superior Sound Quality: 40mm horn drivers deliver high-fidelity stereo sound with 113±3dB sensitivity. Comfortable Design: Ergonomic headset design with Type-C charging interface for convenience. Overview Bluetooth version: V5.3 AC6955F Bluetooth protocol:support TF card：support Channel system: stereo sound Battery capacity: 300mAh Charging time: 1.5h Music time: ≈25h Call time ≈ 13h Horn diameter: 40mm Horn impedance: 32Ω Horn sensitivity: 113±3dB Best transmission distance: <1m Maximum transmission distance: 10m Bluetooth operating frequency: 2.402GHz~2.480GHz Wearing method: Headset Charging interface: Type-C Size: 20*17*8cm Specifications Charging Type Type-C Battery Size 300 mAh Product Weight 550 g Connection Type Bluetooth Average Battery Life 11hrs - 16hrs Charging Case Type Wired Feature Active Noise Cancellation, Bluetooth, Head Support Features Active Noise Cancellation, Bluetooth, Water Resistant Model Number 1130900035 Model Name AT6