ASUS P3B 800-Lumens 1280 x 800 Ultra-Short-Throw 12,000mAh Battery HDMI/MHL VGA microSD Reader USB Portable Wireless LED Projector 12,000mAh internal battery provides 3 hours of cable-free projection and doubles as a power bank for other devices when not in use. Advanced DLP Technology with 30,000-hour LED lifespan, 800 lumens brightness, 1280x800 native resolution, and auto adjusted keystone correction Palm-sized and .75 pounds lightweight for maximum portability with the best-in-class 1:1 short-throw ratio HDMI/MHL and VGA port ensures compatibility with a variety of sources, USB port and MicroSD card support multimedia file playback. Built-in ASUS Sonic Master enhanced-2W speaker for authentic sound reproduction To connect with iPhone/iPad(Lightning port only), purchase separately the Lightning Digital AV Adapter from Apple. To connect with Samsung devices, purchase separately a Samsung specific MHL cable(5 pin to 11 pin) for video output