Mini projector comes with dual-band 2.4G+5G WiFi and Bluetooth 5.2 for stable streaming and audio connection. It has built-in apps such as YouTube and Prime Video and works with TV sticks. It supports 4K video playback via USB, with scratch-resistant optical lens and built-in stereo speakers. One-touch dynamic starry sky mode offers 9 animated scenes and sleep timer. 180° rotatable body supports ceiling and wall projection. Auto vertical keystone, auto & manual focus, 0.9:1 short throw ratio, 30–200" image size (40–100" recommended). Only 0.35kg, compact for camping, travel, bedroom, dorm and outdoor movie nights.