Light weight for all day comfortable.
Easy use and carrying .
Bluetooth 4.1 . high fidelity speaker, excellent call quality.
Free call and listen music function.
Bluetooth Effective Distance:10 meters
Distortion degree: ≤ 1%.
Recharging voltage: 5 V.
Package Weight (kg): 0.06 KG.
Build-in rechargeable li-battery.
It has a microphone. you can talk to people using the Bluetooth earphone. please check. thanks
1 x Bluetooth Earphone
1 x charging cable;
1 x manual