Feature 1 Bone conduction headphone is no need of inserting into the ears for protecting eardrum from being hurt. 2 It makes your ears still hear the surrounding sound while enjoying music when you are driving, riding and taking exercises. In some cases, bone conduction headphones keep you safe from accidents. 3 Get rid of the wire and brings convenience when exercising, doing sports and other activities. 4 Bluetooth 4.1, easy to pair with smart phones, laptops and other Bluetooth devices. 5 Adopts new generation noise cancelling technology, which can reduce noise interference and improve sound quality even in crowded environments.Description: This Bluetooth bone conduction headphone is enabled with CVC noise cancellation, which can receive audio from mobile phones, laptops and other Bluetooth devices. After pairing and connecting with PC bluetooth DONGGLE, it can play all kinds of audio from the computer. It can also be used for voice chatting via QQ, MSN and other social softwares. Features: Bone conduction headphone is no need of inserting into the ears for protecting eardrum from being hurt. It makes your ears still hear the surrounding sound while enjoying music when you are driving, riding and taking exercises. In some cases, bone conduction headphones keep you safe from accidents. Get rid of the wire and brings convenience when exercising, doing sports and other activities. Bluetooth 4.1, easy to pair with smart phones, laptops and other Bluetooth devices. Adopts new generation noise cancelling technology, which can reduce noise interference and improve sound quality even in crowded environments. Specification: Material: ABS Color: Black, White (Optional) Transmission Range: 10 m Bluetooth Version: 4.1 Support Protocol: Head set/ handsfree/ A2Dp/ AVRCP Standby Time: About 10 days Battery: Built-in Lithium Battery Battery Capacity: 210 mAh Duration for Call: About 6 hours Duration for Music: About 5 hours Size: Approx. 13x12.3x1.5 cm/ 5.12x4.84x0.59 inchAudio: 87.5-108MHz Packing List: 1 x Headphone 1 x User Manual 1 x Charging Cable 2 x Ear Cap Package List1 x Headphone1 x User Manual1 x Charging Cable2 x Ear Cap