Specifications:
bluetooth version: V4.0 compatible V3.0, V2.1, V1.1
the chipset: CSR/ISSC
send power: Class2
send frequency: 2.4 GHz
long transmission distance, more than 10 meters
the talking time: 3-4 hours
the standby time: 120 hours to 120 hours
support the file format: easy - X, A2DP, AVRCP, HSP and HFP
Chip: CSR 8645 V4.1 Breakthrough exclusive technology doubles Soundbeats playtime to a solid 4 hours
SignalPlus for skip-free music outdoors. Use your music device left/right side, above/below waist, doesn't matter with SignalPlus.
PureSound In-ear white noise and listener fatigue reduction. Eliminates the white noise and delivers a clean audio experience offering hours of pure enjoyment.
Sweat-proof, durable design, Onscreen Battery Meter, Up to 4-6 hours of Talk/Playing Time and 150 hours Standby Time.
High-fidelity stereo music and clear speech, You can begin enjoying CD quality stereo sound instantly.
Brand new and high quality.
Compatible with most cellphone and devices with bluetooth capabilities.
High quality soud with HD speaker and enhanced BASS effect
CD quality sound with apt-X codex support.
Comfortable,flexible and light .
Easy to handle ear set with magnetic properties.
Using the world famous brands CSR4.1 8645 Bluetooth Stereo Bluetooth chips Extended battery life !

Courtesy reminder:
please press the switch lasting 8 seconds, if not enough time, the headset will not be in the correct boot state, it will produce a short electronic current sound disappear until the headset automatically entered into the correct boot state.
If you have any question, please contact me!! I will solve for you until you satisfied !!!
Best regards and have a nice day!

Package Includes:
1 x Bluetooth Headset
1 x USB Charging Cable
Extra 2 pairs Silicone Earbuds (Different Sizes)
1 x Use Manual
1 x Case

• 100% brand new and high quality
• bluetooth version: V4.0 compatible V3.0, V2.1, V1.1
• Compatible with most cellphone and devices with bluetooth capabilities.
• Sweat-proof, durable design, Onscreen Battery Meter, Up to 4-6 hours of Talk/Playing Time and 150 hours Standby Time.
• PureSound In-ear white noise and listener fatigue reduction. Eliminates the white noise and delivers a clean audio experience offering hours of pure enjoyment.

100% brand new and high qualityIusun