Description: Provides wireless freedom to you,which is a fashionable outdoor product designed to remove any inconvenience of using earphones or a headphone for listening to music/take calls outside Available for most of devices with bluetooth function Knitted Materail, fashion and keep warm with answer the phone in winter Built-in speaker, bluetooth Technology , It not only functions as a hat but also provides quality sounds at the same time, it is the best choice for the people who love fashion and sports Built-in Li-ion battery, charge via the USB cable, long time stand-by Specifications: Bluetooth: V3.0+EDR Frequency: 2.402-2.480G Battery Built-in: 3.7V/100mA Li-on battery Effective Range: About 10M Charging Time: 2H Standby Time: About 60H Working Time: About 3.5H Headband Size: 40cm (elastic, fits for 40-68cm) Color: Black Package Includes: 1x Bluetooth Headband 1x USB Cable 1x User Manual
