KOGI-K6

Technology Standard: Blue tooth 3.0+EDR
Transmission Distance: Line of sight approx..10m(30ft)
Wireless Frequency: 2.402 to 2.480GHz ISM band
FM frequency response: 87.5-108MHz
Sensitivity: 85db+/-3db 
Continuous Playing Music: 6 h
Conversation Time: 3-4 h
Frequency Response: 20-20 KHz
Audio Output: 4Ω-0.5W Hi-Fi 30mm Speaker

Battery:3.7V 300mA                                                                          

Charging time:2 H