Features: brand new and high quality The Ultimate Experience of Sound: Lossless music auditory feast, a real shocking experience. Simple Control Panel and Easy Operation: Press the button with your fingertips to operate, switch songs, adjust the volume, answer or make calls. Powerful Noise-reduction and Dust-proof Microphone: Transparent sound is clear and bright, and the pickup is clear. The use of high-sensitivity microphones has the characteristics of anti-interference and clear pickup. 5.0 Stable Transmission: 5.0 Headset, fast connection, stable transmission; plus soft ear pads and fixed non-slip pads, give you a more pleasant enjoyment. Soft Earmuffs Comfortable to Wear: The earmuffs are made of protein leather, soft and skin-friendly, and fit the ears without gaps and soft wrap. Specifications: Frequency Range: Blue-tooth Standard, 2.4022.480ghz The Main Chip Data Storage Uses 8m Flash. Support A2dp\hfp\hsp\avrcp Protocol It Can Be Paired and Connected with Blue-tooth Devices That Support A2dp\ Hsp\hfp Protocol for Calling and Listening to Songs Support Blue-tooth Pairing Security Key: 0000 Working for Time Up to 24 Hours (50% Volume) Charging for Time is About 2 Hours, Charging Input: 5v for Dc 500ma 400mah Li-ion Polymer Rechargeable Battery Working Temperature: -1055 Blue-tooth Headset Net Weight: About 78.8g Material: ABS Color: Black Package Dimension: approx. 194x65x177.5mm/7.64x2.56x6.99inches Net Weight: 230g/0.51lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PC Telephone Wireless Headset