High quality and 100% brand new</br>High-end knitted environmental friendly fabric can keep your ear warm and comfortable in winter .</br>Equipped V3.0 + EDR Bluetooth version that can be used for most of devices with Bluetooth function.</br>Installed miniature microphones that can answer the phone call from the calling device hands freely.</br>Set in rechargeable battery by USB cable can be on standby for a long time.</br></br>Product Description</br></br><b>Specifications</b> <br> ? V3.0 + EDR Bluetooth version that can be used for most of devices with Bluetooth function . <br> ? high-end soft fabric with strong plasticity that can fit most head size and ensure most comfortable fit possible. <br> ? you can use it not only answer the phone call handsfree but also listen to music you like . <br> ? removable Bluetooth module allows the beanie can be washed with cold water and hung dry . <br> ? supply power display on phone. <br> <br> <b>production details</b> <br> ? Bluetooth Version: V3.0+EDR <br> ? Transmission distance: about 30 ft <br> ? Transmission distance of microphone : 3 ft <br> ? Li-ion Battery :3.7V/120MA <br> ? Charging time:2.5 HRS <br> ? Standby time:60 HRS <br> ? Continuous working time: about 4HRS <br> ? Bluetooth name : Magic Hat. <br> ? Size: fits for head circumference 22-24 inches <br> <br> <b>Notes: </b> <br> ? please remove the Bluetooth module before washing in order to prevent the Bluetooth from water . <br> ? please read the installation instruction and if you are not clearly ?? contact us please . <br></br><br/>http://www.amazon.com/gp/product/B01MPWWQFI