How to make our case work with your headphones?1. Press the bluetooth button for about 3 seconds, it shows blue light when working.2. Open your phone's bluetooth device to search the bluetooth named "YX-1", connect it.3. Now plug your headphone to have a try.If you are still confused, please contact us again any time, we will show you the operation pictures.InstallationInsert the charging plug into the mobile phone.Insert the mobile phone into back power.DisassemblyEject the back power with mobile phone.Pull out the mobile phone.UsePress and hold the power button for 5s.LED light on shows current battery power and start charging cellphone.Charging and reading data.Four LED power indicating lamps.Press the power button for once to indicate the remaining power of the charger case while pressing the same button and holding for three seconds to switch it to charging mode.Specifications: • Capacity: 3000mAh Li-Polymer Rechargeable Battery • Dimensions:144mm*73mm*14.8mm • Weight = 2.72 ounces • Input Voltage: 5V/0.5A-2.1A • Output Voltage: 5V/1.0A-1.5A • Charging Power Level: 1 Light = 25%, 2 Lights = 50%, 3 Lights = 75%, 4 Lights = 100% User tips: Please charge the battery case fully and deplete the power of the battery case completely at the first use. • Don't break or dismantle the battery case. Don't throw it into the fire. And don't place it in the hot or humid place. Packing list: • iPhone 7 3000mAh battery case • User Manual Warranty: collee offers a 18 months manufacturer limited warranty that will protect you against all defects in material and workmanship
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