Product Feature: 1. Small & Portable: The projector is very small in size (4.7× 3.4. x 1.9 inch) , not too much bigger than your mobile phone, you can take it anywhere in your pocket. No built-in battery. [Not Recommended for PPT Presentation!] 2. Connect to Multiple Devices: The portable projector equipped with HDMI, Micro SD, AV, 3.5MM Audio Jack, USB interfaces, is compatible with TV Box, TV Stick, PCs, Laptops, PS4, USB Flash Drive, Media players, and external speakers.3. Built-in Speaker & Power Bank Supported: The video projector with built-in speakers offer excellent loud sound quality, you can also connect it to external speakers to meet your higher quality sound needs. The projector with 5V2A port can support power bank. [ Not support Dolby digital sounds]4. About Performance: The movie projector is equipped with 800:1 contrast ratio, supported 1920×1080P resolution, brings you a watching size from 20” to 80” with the projection distance between 1.2M to 3M. Suitable for home entertainment, taking online classes, or keeping the kids entertained with hours of cartoons or educational videos.Product Specification: Projector Item Type: Mini Projector Projector Imaging Technology: TFT LCD Projector Contrast Ratio: 800: 1 Projector Physical Resolution: 320 × 240 Projector Support Resolution: 1920 × 1080 Projector Light Source: LED Projector Focus: Manual Projector Projection Distance: Approx. 0.8 ~ 2meter / 2.6 ~ 6.6ft Projector Projection: Approx. 50.8 ~ 152.4cm / 20 ~ 60in Projector Projection Ratio: 1.6: 1 Projector Screen Ratio: 4: 3 Projector Adapter: 12V-2A Projector Mobile Power Supply: 5V-2A Projector Projector Built-in Battery: Lithium battery 1300mAh Projector Remote Control: 2 x AAA (without battery) Projector Power: 10W-24W Projector Support document multimedia documents (music, picture, video, TXT)Package Lists: 1 x Projector 1 x Plug 1 × 3-In-1 AV Cable 1 x Remote Control 1 x User Manual