Features: 

noise reduction, bone conduction, ultra long battery life, call function, voice control, support for music, digital display screen

Detail: 

Bluetooth-Compatible version: V5.3

Charging time: about 0.5 hour

Battery capacity: 150mAh

Usage time: about 8 hours

Frequency: 20Hz-20KHz

Impedance: 32 ohms

Sensitivity: 85dB/mW

Waterproof grade: IPX 5

Note:

Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!

Please allow 1-2cm measuring deviation due to manual measurement.

Includes: 

1 * Earphone

1 * Charging Cable