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Headphone
Bluetooth Series
KOGI-G9
Bluetooth Version: V4.2
Driver UnitΦ40mm 
Impedance: 32Ω 
Sensitivity: 105 ±3dB 
Frequency Response20Hz-20kHz
Receiver Distance: Up to 10 meters 
Working Time:Up to 6 hours
Charging Time:2 hours
ChargingUSB 2.0
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/300mAh)
Features:Sensitivity Microphone,Volume Control , Bluetooth, etc.

Clours:Black, White, Gray, Red, Purple, Gold