BELEDU BEL-KB560, User Manual

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1. Product Overview
This projection keyboard will work via Bluetooth HID. connection to main
devices, like Tablet PC, Smartphone, Desktop PC and Video game . As a new
input device, using the built-in infrared laser transmitter to project the standard
keyboard on the working surface , you can locate the click position and input
the information by the method of optical identification. Without physical
keyboard, small size, easy to carry, this projection keyboard can adapt to most
of the working environment.
2. How This Product Works
This product emits infrared light from the lower end of the product to detect
objects such as fingers. When an object passes through the are illuminated by
the infrared light source, any infrared light reflecting off an object is detected by
the sensor.
Information on the position and movement of the object is then analyzed to
perform the product’s role as a keyboard.