Aspect Ratio: 4:3. Audio Inputs: 2.5mm 4 pole jack socket. Audio Outputs: None. Brand: Optoma. Brightness in Lumens: 20. Built in DVD: No. Built in Speakers: No. Ceiling Mount Supplied: No. Contrast Ratio: 1000:1. Dvi Input: No. Features of Product: Enjoy "60 image that fits in your pocket. Easily share photos and videos from mobile devices. Ultra-light at 4 ounces including battery. Recharge battery conveniently via USB or included AC power adaptor. LED light source lasts over 20,000 hours. Project images on any surface. Hdcp Compliant: No. Horizontal or Vertical Throw: Vertical. Illumination Source: LED. Keystone Correction: Yes. Lamp Life in Hours: 20,000. Maximum Throw Ratio: 0.15 a€“ 1.5m. Noise Level in dB: N/A. Product Depth: 1.5 cm. Product Height: 1.03 cm. Product Weight: 115. Product Weight Units: g. Product Width: 5 cm. Remote Control: No. Replacement Lamp Supplied: No. Type of Projector: DLP. Usage: Portable. USB: Yes. Variable Iris: No. Video Inputs: 2.5mm 4 pole jack socket. Video Outputs: None. Video Standards: NTSC, PAL. Wall Mount Supplied: No. Wireless: Yes. Zoom Lens: No.