KOGI-K12

Bluetooth Version: V4.2
Driver Unit:Φ40mm 
Impedance: 32Ω 
Sensitivity: 105 ±3dB 
Frequency Response20Hz-20kHz
Receiver Distance: Up to 10 meters 
Working Time: Up to 5 hours
Charging Time:2 hours
ChargingUSB 2.0
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/300mAh)
Features:Bluetooth, Calling, AUX, Sensitivity Microphone,Volume Control, etc.

Clours:Black-silver,Black-gold, Black-red, Black-blue