ZTE projector The projector has a display screen and runs on Android system ((The Android system is old and does not accept new applications and some updates)) and has a built-in battery and internal speaker. Very clean, comes with all its cables, bag, and a tripod stand. Note // It does not connect to the phone, an HD cable is required. There is an HD port, a USB port, an AUX port, and an external memory card slot. You can connect a PlayStation, receiver, or anything that works with HD. Note // The external speaker in the video is not for sale.