Combine beanie and bluetooth device together， let you keep warm， hands free phone call answer and enjoy music everytime and everywhere， far away from phone radiation. Bluetooth beanie is a very nice festival gifts for your friends in winter season. <br /> <br /> <b>Specification:</b> <br /> Model: Bluetooth beanie <br /> Material: 100 % Acrylic <br /> Washable and Detachable: Yes <br /> Function: Answer phone， listen to music <br /> Certification: CE， ROHS， BQB <br /> Diameter: 10*8.47inch <br /> Weight:5 ounce <br /> Package: Color box <br /> <br /> <b>Technology Specific:</b> <br /> Bluetooth: V4.1+EDR <br /> Speaker: 30MM，4Ω/0.5W & MIC ?2.2KΩ <br /> Battery: 3.7V/200mAh <br /> Inputting Voltage: 5V/1A <br /> Transmission distance: 10M or so <br /> Transmission distance of MIC: ?1 M <br /> Charging time:2.5 HRS <br /> Stand- by time: 150 Hrs or so <br /> Continuous working time: about 8 Hrs <br /> <br /> <b>Package Includes:</b> <br /> 1* Bluetooth hat; <br /> 1*USB cable. <br /> 1*Manual <br />