the asus p3b, with its exceptionally short projection distance and battery power, is a lightweight, compact projector that matches the size of a cd case. you can comfortably carry it in a briefcaseor handbag. the p3b is the brightest battery-powered led projector on the market. it provides a sharp image in wxga 1280 a - 800 resolution and light output of up to 800 lumens. its built-in rechargeable battery lasts for 3 hours of operation without a socket and also serves as a power bank with a capacity of 12,000 mah for charging your mobile devices. thanks to a lens with an exceptionally short projection distance, the p3b projector can draw an image with a diagonal from 0.45 meters to 3.4 meters. you can use the p3b anywhere - outdoors during camping, as a home theater base or as a presentation tool in small conference rooms. the asus p3b projector optionally includes a small wi-fi adapter for direct wireless connection to a laptop, pc or android device. you no longer need to carry a video cable with you for presentations. you can transfer presentations, documents or multimedia files wirelessly to the p3b projector. asus wi-fi projection software offers a split-screen feature that allows users to view images from two to four smartphones, tablets or laptops.projection technology: dlpnative resolution: 1280 x 800 (wxga)number of displayed colors: 16.7 millionluminous intensity [lm]: 800contrast: 100,000: 1display format: 16:10image size [inches]: 200projection distance [m]: 3.44throw ratio: 0.8: 1zoom: fixedhorizontal refresh rate [hz]: 15 375 - 91 146vertical refresh rate [hz]: 24 - 120 hz3d support: yeswireless projection support: yespip support: no.sound: speaker (2 w x 1)lamp type: ledlamp life [h]: 30,000interface: hdmi mhl vga micro usb usb-a audio outpower supply: battery 12000mahconsumption [w]: 65standby consumption [w]: 0.5noise level [db]: 32dimensions [mm]: 153.5 x 43 x 131.2weight [kg] 1,8package contents: p3b, bag, hdmi cable, adapter, power cable, warranty card, qsg, remote controlwarranty: 2 years