KOGI-K1

Bluetooth Version: V4.2+EDR
Driver Unit:Φ40mm 
Impedance: 32Ω 
Sensitivity: 105 ±3dB 
Materials: ABS
Receiver Distance: Up to 10 meters 
Playing Time: Up to 4-5 hours
Charging Time:2 hours
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/400mAh)
Features:Bluetooth, Calling, TF, AUX, USB

Clours:Blue, Red, Purple, Green