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Earphone
Sport Series
KOGI-I2
Bluetooth Version: V4.2
Frequency Range:20Hz-20kHz
Sound Output:2.5mW
Sensitivity:99db+3db
DC Resistance:32Ω
Receiver Distance:Up to 10 meters
Battery Voltage: 40mAh Grade A
Charging Voltage:DC 5V
Charging Time:20-40 minutes
Music/Talk Time:3.5  hours
Features:Automatically Matching,Sensitivity Microphone,Easily Charge via USB Port,Volume Control  etc.

Color: Black, Blue, Green, Pink, Yellow