Enjoy Your Favorite Music With Smart Hat Cap! Warm and cozy knitted hat with built-in headphones allows you to listen to your favorite music when out and about. The Bluetooth Music Hat is also Wireless for completely tangle free listening. Protects you from cold winter and will also allow you to listen to music and talk while doing a variety of other activities; Built-in microphone, available for cell phone to transmit the speaking phone to your audio devices directly, hands-free answering; You will look great and keep warm while listening to your favorite music. Keep the soundtrack to your life playing all the time Feature: V3.0+EDR Bluetooth version, available for most of the devices with Bluetooth function There are 2 earphones on both side of the hat! Knitted material, fashion and keep warm with answer the phone in winter. Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can hand free answering phone up via the device. Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time. Support display receiver battery on for iPhone. When you want to wash the hat, just take the Motherboard out of the hat That is Free size of the hat Specification: Bluetooth: V3.0+EDR Frequency: 2.4026GHz-2.480GHz Transmission distance: 10M Transmission distance of MIC: ≤1 M Li-ion Battery: 180mA Charging time: 2.0 hours Standby time: Up to 18 hours Continuous working time: about 3.5 hours Contact Options Email: [email protected] (Best Option) Phone Number: 44 20 7660 1046 Address: London Marketshop, 275 New North Road Islington, Suite 1258, London N1 7AA