Features:

Super bass, perfect sound effect40mm HD driver unit provides clear sound quality, offers the natural and true soundBuilt-in MicrophoneSupports hands-free talking, enhance the driving safetyCompatible with Bluetooth 2.1 + EDRAdjustable and comfortable headband. Perfectly fits your earsEar-cover design, noise cancellationBuilt-in 300mAh batteryBluetooth distance up to 10m

Specifications:

Color : Black, White Wearing type : Headband Feature: Super Bass Function : Song switching, Microphone, Voice control, Answering phone

Connectivity : Wireless Connecting interface : Micro USB Application : Mobile Phone Driver unit: 40mm Frequency response : 20~20KHz Impedance : 32ohms Working voltage: 3.7V Input power: 5V Talk Time: 8 - 10h Music Time: 4 - 6hBluetooth: Yes Bluetooth version: V2.1+EDR Bluetooth distance: W/O obstacles ≤10m Bluetooth mode: Hands free, Headset

Product weight : 0.191 kg Package weight : 0.427 kg Product size (L x W x H) : 19 x 16.5 x 6.7 cm / 7.47 x 6.48 x 2.63 inches Package size (L x W x H) : 22 x 20.5 x 8.5 cm / 8.65 x 8.06 x 3.34 inches

Package contents: 1 x Bluetooth Headphones, 1 x Charging Cable, 1 x Chinese and English Manual