Material: polyester
Bluetooth: V4.1+EDR
Transmission distance: 10M
Transmission distance of MIC: less than 1M
Charging time: 2 Hours
Stand-by time: 60 Hours
Size: Adjustable to all size
Function: Answer phone, listen to music
Suitable to: Unisex
Built in rechargeble lithium battery

V4.1+EDR Bluetooth version, available for most devices with Bluetooth function
Bulit-in Mic and speaker, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can answering phone
Bulit-in Li-ion chargeable battery, charge via USB cable, long stand-by time
For IOS System: supports the Headset Battery Power Display.
The Bluetooth cap is your best choice when playing baseball, walking, jogging, cycling, touring, fishing, etc
Color:Black Red Hot Pink Blue Orange Grey