High-fidelity sound quality, clear and pleasing to the ear, better quality and comfort. In the limited volume space, through precise structural design, sufficient resonance space is reserved, and the sound quality is stronger. interfaces and easy connection In addition to wireless projection/smart devices on the same screen, you can also read documents, videos, etc. through a USB flash drive. Cinema-level 4K film source playback, 720P high-definition screen, better picture quality. High-brightness, extremely colorful, greatly improved uniformity to restore the real image. Small size, easy to carry, can be used anywhere. Type:Projector Projection technology:3.5inch LCD Brightness:120ANSI Resolution:1036*600P Chip:RK3128 WiFi module:8723DS B T:4.2 Power Suplly:2 AAA batteries(without battery) Voltage:AC110V Plug Type:US Plug,it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Colour:White Material:ABS Package Contents: 1 * Projector 1 * Remote Control (Battery Not Included) 1 * Power Cord Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.