Bluetooth stereo headphone Specifications:
Bluetooth version: V1.2
Radio performance: Class II
Operating distance: 10m
Frequency range: 2.4GHz~2.8GHz
Channel: 79
Driver diameter: Φ40mm
Sentivity(S. P. L): 110dB3dB/mW(at 1K Hz)
Headset Power: Rechargeable betteries(AAAx2)

Bluetooth stereo headset Features:
1. Built-in waterproof microphone
2. Hi-Fi sound quality
3. Low power consumption: Talking time up to 8 hours, Standby time up to 300 hours.
4. Incoming call reminding when listening to the music
5. Free switch between music and phone call
6. Compatible with all Bluetooth enabled devices