Once connected, the power indicator light will illuminate red on the projector to show it is connected to power. To power the projector with the Micro USB to USB cable, connect the Micro USB to the projector’s and plug the other end into a USB port.The projector can be powered using the included Micro USB to USB cable or the built-in battery.IMPORTANT: Fully charge the battery before the first use (approximately 3-4 hours). The blue system indicator light will come on if the battery power is getting low. The built-in battery is charged using the included Micro USB to USB cable. Operating the Projector Charging the Battery This button is a small recessed button, so you will need something small, such as a paper clip, to press the button. Reset button - Press to reset the projector.The USB cable can be plugged into a USB wall outlet or a USB port on a computer for power. Micro USB power port - Connect the supplied Micro USB to USB charging cable to charge the projector's internal battery or provide the projector with power.HDMI input - Connect the HDMI cable to this port and a device that supports HDMI video output to project content.3.5mm Audio out port - (Optional) Can be used to connect an external speaker or headphones.Power indicator light - This light will illuminate red when the projector is connected to power to show that the battery is charging or receiving power.System indicator light - This light will illuminate briefly as the device starts up, and will also come on if the projector's battery power is getting low.Power switch - Slide power switch forward (toward the projection lens) to power the projector on.

Volume down control - Decrease the volume output of the projector.Volume Up control - Increase the volume output of the projector.Focus wheel - Roll left or right to fine tune the image focus.

Miroir micro projector model m20