Great Viewing Experience: Native resolution 1280x720 (supports up to 1080P) and a max 200 screen size you’ll enjoy a clear and bright picture. It has an 8000:1 contrast ratio and both 4:3 and 16:9 aspect ratios for a wide viewing field. You can also adjust the image with keystone and focus settings. Newly Bluetooth Feature: The mini projector now has Bluetooth 5.2 so you can connect external speakers or use the projector as a speaker to play music from your phone. Works with Most Devices: The projector has HDMI USB Micro SD and a 3.5mm audio jack making it easy to connect to various devices.