Wireless Sports Headphones features -Wireless 5 0 technology that produce great sound quality devices can pair your iPhone X iPhone 8 or any other Smart-phones iPad Tablets easily -Farther transmission -More stable connection -Longer battery life -Better sound quality How to connect to devices? 1 Close all your Bluetooth in the phone or tablet first 2 Press and hold the “On/Off” button for about 5 seconds until the red/blue light flashes 3 Open your devices and find the devices name BT-FAAH then connect 4 Then you can enjoy music! Notice Please disconnect the first paired device then pair the second device How to Wash it? ---Washable Fabric & Removable Speakers Step 1 Push right speaker to the place of devices control Step 2 Push left speaker to the place of devices control Step 3 Push 2 speakers and Bluetooth control to the place of fabric liner which is separated from stitching Tips 1 Do not attempt to Power on or connect the devices while charging Get the battery fully charged first then disconnect from charger before connecting the Bluetooth 2 Don't use Sleep headphones eye mask while it's charging 3 Please check USB cable if can't work to charge 4 Please adjust the volume from your mobile or Long press Vol+ from devices if you can't hear any music 5 The sound may have a bit noise if there's environmental interference 6 Both speakers are not fixed it can be adjusted according to your size