Brand: KUWO
Model: K1
Bluetooth: V4.1 + EDR
Function : Microphone， Answering phone， Bluetooth
Connecting interface : Micro USB
Power supply: Built-in rechargeable battery
Frequency response : 20~20KHz
Impedance : 16ohms
Sensitivity : 110 dB
Talking time: About 7 hours
Music playing time: Around 7 hours
Standby time: As long as 336hours
Charging time: About 1-2 hour
Application : All the smart Mobile Phone

Features:
1.Polymer lithium battery， 7 hours of continuous playback music， standby time 2 weeks.
2.High-end CSR8645 control chip，bluetooth version 4.1，bluetooth connection more stable， wil not appear caton.
3.Smart to open and close the bluetooth headset， when two headset separate headset automatically shut down， when two headset cohere， the headset automatically open.
4.IPX4 water resisting

Package included:
1 x Bluetooth Earphone
1 x USB Cable
1 x User Manual
1 x Small bag pouch