Features:
100% Brand new and high quality!
Built-In Microphone,
Noise Cancellation,
Playback Controls,
Rechargeable,
Sweat Proof,
Volume Control
Specifications:
Charging voltage: MICRO USB 5V
Bluetooth Working range: 10M
Output power: 2x18mW
Frequency range: 2.401-2.480GHz
Distortion factor: ≤1%
Frequency response: 20Hz-20KHz
Working Time: Music state 2.5-5 H / Talkingstate 2.5-6 H
SNR: S / N≥95
Charging Time: 2h
Speaker: 16Ω20mW x 2
Battery: 3.7V / 195MAH