Bluetooth Solution: AB5756C2;Bluetooth Version: 5.4

Speaker size and impedance: 12mm

Transmission range: 10 meters straight line

Wear method: semi-in-ear, clip-on

Battery capacity (charging case): 600mAh

Battery capacity (individual earpiece): 45mAh

Call duration: 6 hr. (70% volume)

Number of times the charging compartment can charge the headphones: 6.5

Time taken to fully charge the charging compartment: 1.5 hr.

Charging port: Type-C, current: 3.7V / 600mAH 

Water-resistant rating: IPX4

Button operation: Touch.

Function: Switch between Chinese and English.Left or Right Ear: Double-click to switch songs. Right or Right Ear: Triple-click to adjust volume. Left or right ear: Click to answer/hang up the call.Right ear: Press five times to switch to regular mode or gaming mode.