Optoma PK301+ Portable DLP Projector: * DLP (Digital Light Processing) technology * 854 x 480 WVGA resolution * 75 LED lumens bright mode; 20 LED lumens standard mode * Contrast ratio: 3000:1 * 16:9 Native; 4:3 compatible * One 0.5W speaker, headphone out * 28MB internal memory; microSD slot supports up to 32GB SDHC * Dimensions: 4.7" x 1.2" x 2.7" * The Optoma PK301 Projector includes power adapter, rechargeable li-ion battery, male USB cable, standard A/V cable (RCA to mini-jack), universal to VGA cable and case