• Bluetooth-compatible 5.3 chip, stable and fast connection
• IPX4 waterproof can effectively resist water in daily use
• Lightweight and comfortable to wear, ergonomic design for stable wearing
• 13mm composite membrane movable coil and 32Ω hi-fi brass ring horn for clearly distinguishing beautiful sounds of various musical instruments

Specification:

• Material: ABS
• Bluetooth-compatible: 5.3
• Waterproof: IPX4 
• Effective distance: 10 meters
• Earphone battery capacity: 25mAh
• Charging compartment battery capacity: 220mAh
• Input: 5V-200mA
• Output: 5V-100mA
• Charging time: about 2 hours
• Use time: 30 hours (including charging compartment)