Specification:
Material: Shell Plastic
Color: black, white, gold, red, blue (optional)
Drive: 15mm
Impedance: 32 OHM
Bluetooth version: Bluetooth v4.1 EDR
Bluetooth use band: 2.4GHz
Power level: CLASS II
Output power: 30mW
Bluetooth distance: 10 meters (barrier-free)
Frequency response: 20-20000Hz
Operating voltage range: 3.0V-4.2V
Mitou sensitivity: -42dB
Charging time: about 1 hour (power indicator charging: red light, full power: red light off (blue light).)
Talk time: about 4-5 hours
Music time: about 4-5 hours
Standby time: about 120 hours
Charging time: about 60 minutes
Battery capacity: within the lithium battery 55MAH
Charging power: DC5V power supply (round hole interface) (computer USB port, mobile phone charger, car charger)
Compatible mobile phones: Compatible with Android, Apple, Microsoft, Saipan system 99%  phone with bluetooth function
Product Size: 5 x 2 x 1.5cm

Features:
1. listening to the song, support songs and then call,
2. Caller ID, the last call back, intelligent Chinese and English voice prompts, boot, pair, power low voice prompt.
3. Apple phone power display, you can always watch the headset power situation, do not need to worry about the headset is out of power.
4. One drag two connections, can be connected to two mobile phones.
5. Automaticly connected to device with bluetooth when you turn on the headset again.
6. Intelligent compatibility: support all  mobile phone with bluetooth function, tablet, notebook, singing, QQ music, movies, etc.