Wireless Bluetooth Earphone Headband w/ Mic Smart Sleeping Music Headset Headband Stereo Sports Headphone for Travel/Running/Yoga Product name: BT-01 Master: version 5.0 Power consumption: 15mA Language: English MIC: 40db Speaker: 32 ohm stereo, white porcelain Battery capacity: 150mA Endurance: 8h-10h Buttons: Up / Volume "-" Play / Call Back Down / Volume "+" Line length: 45cm Interface: MICROSUSB Function: Bluetooth listening to music and making calls Distance: 10M Features: Superior sound quality; Simply sync to any Bluetooth device and in seconds the wearer can enjoy hands-free connectivity, enabling them to make/receive calls and listen to music, wirelessly Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices diretly so that the user can hand free answering phone up via the device. Set-in Li-ion chargeable battery, charge via USB Cable; With Built-in Removable headphones which can be pulled out from the hat if you would like to wash the hat! Package includes: 1 x Bluetooth Music Headband 1 x USB Charging cable 1x user manual