Clip-on Wireless Bluetooth Earphone With Digital Charging Compartment(Black)

1. Bluetooth chip: Bluetooth 5656c22. Bluetooth version: V5.33. Transmission distance: about 10m4. Battery capacity: 40mAh for headset, 350mAh for charging compartment.5. Charging time: about 1h6. Use time: about 6h7. Frequency: 20Hz-20KHz8. Impedance: 32 ohm9. Sensitivity: 85dB/mW10. Waterproof rating: IPX 511. Material: PC+ABS12. Charging compartment size: about 6 x 4 x 3.2cm13. Weight: about 40.5gFeatures:1. Not into the ear design, skin-friendly material, long wear without pain2. Adaptive directional sound transmission, detect the shape of the ear canal, automatically adjust the integration to ensure that the sound is efficiently transmitted into the ear canal3. 14mm titanium membrane moving coil, balanced full-frequency hearing, bass surging, treble transparent, delicate vocals4. Adopting high elasticity skin-friendly material, adjustable clamping force, lightweight and comfortable, stable wearing, adjustable and stretchable, suitable for different ear shapes5. Built-in memory titanium alloy wire, strong resilience, durability and non-deformation, anti-drop6. Bluetooth 5.3