Nubwo S1 Stereo Bluetooth Headset with Microphone, Foldable Over Ear Wireless Headphones with HD Sound for iPhone, iPod, iPad, Smartphone, Tablet, PC (Black) Advanced Technology: Bluetooth 4.1 allows less power consumption while more reliable connection and the transmission Distance is up to 10 meters.CVC 6.0 Digital noise reduction technology, provide significant noise reduction. Superb Stereo Sound: The built-in 40mm large dynamic driving unit provides excellent deep bass performance. The treble is crisp and clear. Bringing you the perfect enjoyable tune just like listening to a concert live. Ergonomic design: With soft earmuffs, artificial protein leather of earmuffs simulated to human skin texture, ensure long lasting comfort in various rugged. Adjustable headband, extremely comfortable in your ears and over your head. Convenient to Use: Lightweight and FoldableDesign, Convenientfortransportationandstorage which makes it an awesome traveling companion. Built in microphone for Hands-free Calling and voice recording Universal Compatibility: Works with smartphones, tablets and other device Come with 6 months warranty. Should you have any query regarding the product, do not hesitate to contact us, we will reply you ASPS.