• TYPE-C charging port, fully charged can be used for about 3-5 hours
• Support volume adjustment, quickly adjust to ideal volume
• Designed for mask, amplify your voice easily
• Simply clip on the mask, easy to use
• Anti-interference, effectively reduce the noise around the environment

Specification:

• Battery capacity: 330mAh
• Charging time: 1.5H
• Continuous use: 3-5 hours
• Output power: 1.3W
• Charging port: TYPE-C