Aspect Ratio: 4:3. Audio Inputs: None. Audio Outputs: None. Brand: Optoma. Brightness in Lumens: 2500. Built in DVD: No. Built in Speakers: Yes. Ceiling Mount Supplied: No. Computer Resolution: 800x600. Contrast Ratio: 2500:1. Dvi Input: No. Features of Product: Bright projection - 2500 Lumens for use day or night. Native SVGA resolution - project images up to 300" onto any surface. Connects to games consoles, DVD players, digital satellite/TV boxes and PCs/Macs/laptops. BrilliantColor technology - vibrant life-like colours. Ideal for use at home or in the office. Easy to use remote with direct source selection. Hdcp Compliant: No. Horizontal or Vertical Throw: Horizontal, Vertical. Illumination Source: Halogen Bulb. Keystone Correction: No. Lamp Life in Hours: 4000. Maximum Throw Ratio: 2.15:1. Noise Level in dB: 28. Product Depth: 19.2 cm. Product Height: 8.4 cm. Product Weight: 2.3. Product Weight Units: kg. Product Width: 28.6 cm. Remote Control: Yes. Type of Projector: DLP. Usage: Portable. USB: No. Variable Iris: No. Video Inputs: HDMI, S-Video, VGA (D-Sub). Video Outputs: VGA (D-Sub). Video Standards: NTSC, PAL, SECAM. Wall Mount Supplied: No. Wireless: Yes. Zoom Lens: No.