jteman 12 3D Mobile Phone Screen Magnifier with Bluetooth Speaker, HD Protable Movies Amplifier with Foldable Holder Stand, Support iPhone Xs Max/X / 8/8 Plus and Android All Smartphones

Use the USB cable charge the device directly.Use 18650 rechargeable battery, then You can charge your phone while using the Phone Screen Amplifier in everywhere.Recharging mobile phone by connecting charging cable to back side USB2.0 port.Install the base bracket into back groove of Bluetootn speaker case.Insert screen len into slot of Bluetooth speaker case tightly. (NOTE:The rough surface of the lens is the front side.)Hold down the back button and pull up the clip,put your phone into the clip holder,then push down to clip the phone tightly.