AWEI A889BL Air Conduction Bluetooth Earphone Waterproof Sports Music Headset

• 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 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