Recently, Dausen has unveiled an iPhone pico projector battery case at the Computex expo. The device is incorporated with the most recent in DLP technology from Texas Instruments. That is why it is effective at projecting a 640 × 360 pixel image as much as 70 inches across with 1000: 1 contrast ratio. It includes a 2200mAh battery that lasts about 3 hours on a single charge. It may even fully charge your iPhone very quickly.
The device is equipped with a built-in speaker that is powered by a 0.5W audio amplifier. Basically the projector worked well, however it clearly struggled with all the harsh lighting conditions from the show floor. Any other details regarding the specifications of the device are not available at the moment. Pricing and availability are suspense as well, for now. You can watch the hands-on video of the Dausen iPhone pico projector battery case here.