ASUS ZenBeam E1 Portable WVGA LED Projector – 0.2″ DLP display tech – Up to 120″ Projection – R/G/B LED light source – 30000 hours (max) light source life – WVGA(854×480) resolution – 150 lumens light output – 3500:1 contrast ratio – 1x HDMI/MHL, 1x 3.5mm Stereo out, 1x USB 2.0 Type-A – Built-in 6,000mAh battery provides up to 5 hours of projection time and doubles as a power bank – Built-in 2W Speaker – 100%(NTSC) colour saturation – 16.7 Million Colours – 2 Years Limited Warranty