• Innovation air conduction earphone, the sound is transmitted to the ear through the air, no contact with the external auditory canal, take care of your hearing

• IPX4 water-resistant, fully enclosed sound cavity prevents rain and sweat from permeating, make exercise more comfortable

• 120mAh built-in rechargeable battery, provides up to 5 hours using time

• Lightweight and bendable neckband, ergonomics design, bring comfortable wearing experience

• Well-designed button for easy operation with one finger

Specification:

• Bluetooth-compatible version: 5.0 EDR

• Impedance: 32Ω±15%

• Sensitivity: 84±3dB

• Frequency range: 20 -20KHZ

• Transmission distance: 10-15 meters

• Signal to noise ratio: -42dB

• Battery capacity: 120mAh (polymer lithium-ion)

• Playing time: about 5 hours (at 80% volume)

• Standby time: 360 hours

• Charging time: 1.5 hours

Note: 

• When the battery power is less than 10%, the headset prompts low power. Long press the power button for 10 seconds, the white and green lights will flash alternately.