Feature:1. Wireless Bluetooth, stable connection, reduce noise, let you listen to music freely.2. Fashionable design, let you enjoy music all the time. Reduce and weaken background noise, with stereo sound.3. With 500mAh battery, long battery life, large battery capacity.4. The battery level is displayed on the phone at a glance, letting you know when you need to charge.5. Voice prompt function makes it easier for you to operate the function.6. Comfortable without pinching the ears, fits the ears, ergonomic design, soft and comfortable.Specification:Item Type: Bluetooth HeadphoneMaterial: ABSColor: As Pictures Shown Weight: Approx. 181g/6.4oz.Product model: BT12Bluetooth version: V4.1+EDRFrequency range :2.402GHz-2.480GHzTransmission distance: about 20m/65.6ft (Transmission distance varies due to environmental factors and different Bluetooth devices of mobile phones)MIC distance: 1 meter/3.3ftPolymer lithium battery: 500mAhStandby time: about 240 hoursPackage List:1 x Host (Earphone+Microphone)1 x Charging Cable1 x Mic Protective Cover2 x Hook and Loop Fasteners2 x Screw2 x Nut1 x Buckle1 x Manual