Features: 1.Press and hold the middle button for 3 seconds, the red and blue indicator lights will light up in turn, then the red and blue indicator lights will flash alternately, turn on the for Bluetooth of the mobile phone, and the for BT-MUSIC can be used after pairing successfully 2.The for Bluetooth headband sleep headset is very soft and lightweight. Made of durable cationic material and can be easily stretched to fit the head size. The for Bluetooth headset is washable and can be cleaned by simply removing the speaker. Can be used as an eye cover when sleep 3.The for Bluetooth headband allows you to listen to music without wearing other earphones. The built?in microphone allows you not to miss any calls. Very suitable for fitness, exercise, running, yoga and other outdoor activities. Even if you dont use music, the eye cover is comfortable enough in any position to sleep 4.Connect the music to play, after the phone is connected to for Bluetooth, press the middle play button to automatically turn on the music 5.Allow increasing and decreasing the volume, press and hold the volume- to decrease the volume, press and hold the volume+ to increase the volume 6.Support adjusting the previous and next song. Short press volume? to switch the previous song, short press volume+ to switch the next song specification:Item Type: For Bluetooth Headband Material: Cation Battery Type: Polymer battery Battery Model: 402030 Battery Capacity: 150mAh The transmission rate is fast and stable, the unobstructed transmission distance exceeds approx. 20meter / 65.6ft, and the farthest up to approx. 50meter / 164ft English voice prompts for power-on, power-off, successful pairing, low battery, maximum volume, etc. Function: Previous song, next song, volume up, volume down, play, pause, answer a call, make a call, activate for SIRI, microphone intercom Play Time: 7 Hours (100% volume test on iOS) Talk Time: More than 8 hours Standby Time: More than 260 hours (actual test) Charging Time: About 2 hours Resting Time: 500 Days (the product is not in use, the storage time when it is totally charged. This means that the headset can be turned on without charging after 500 days of storage) Instructions: Press and hold the middle button for 3 seconds, the red and blue indicator lights will light up in turn, then the red and blue indicator lights will flash alternately, turn on the FOR Bluetooth of the mobile phone, and the for BT-MUSIC can be used after pairing successfully Mobile Phone Connection for Bluetooth Name: For BT-MUSIC Size: Approx. 9.4 x 24cm / 3.7 x 9.4in PackageList: 1 x For Bluetooth Headband 1 x User Manual 1 x USB Cable