3D Phone Screen Amplifier, 12" HD Screen Amplifier with Bluetooth Spearker Anti-Blue Light Cell Phone Stands.Projector Amplifier for Movies,Videos,and Gaming–Supports All Smartphones

Hold down the power for 3 seconds to enter Bluetooth pairing mode.Wait for "L2-L8" to appear on your Bluetooth device list,click it to pair with your cellphone.It can be charged directly with an micro USB charging cable.Install a 18650 rechargeable battery,use it directly.Short press "<" last song,Hold down the "-" for 3 seconds volume down.Short press ">" nest song,Hold down the "+" for 3 seconds volume up.when incoming calls ring,short press"℡” answer incoming calls,speaker through the built-in mic. The caller‘s voice will come through the speaker. music pauses during the call and palys again at the end of the call.