KOGI-K3

Bluetooth Version: V4.2
Driver Unit:Φ40mm 
Impedance: 32Ω 
Sensitivity: 105 ±3dB 
Receiver Distance: Up to 10 meters 
Working Time: Up to 5 hours
Support: TF/Micro-SD card
Battery:Rechargeble Lithium-battery(3.7V/400mAh)
Functions:Bluetooth, Calling, Volume control, Switch songs, Answer/Reject a call, Hung up phone, Redial, Voice prompt, Battery status, FM, MP3.

Colours: Red, Gray,White,  Blue