DesofIcon Portable Bluetooth Wireless Smart Laser Projection Virtual Keyboard / Trackpad For Mobile Devices / Phones / Tablets and PC | Gift Packaging, Premium Gold - GMF

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Product Description

Connect

Turn on bluetooth on your device.
Turn on the keyboard.
Press and hold "fn" key and "B" key on the keyboard to set keyboard into paring mode.
Keyboard plays a feedback sound whenever a keystroke is detected.
Search for Laser K in your device's bluetooth.
Connect.
You can now start using the keyboard. Make sure you don't put your palm on the keyboard or surface nearby. Only use your fingers.

Trackpad

Press and hold "fn" key and the mouse cursor key to set keyboard into trackpad mode.
Keyboard dims to indicate trackpad mode.
You can now move your finger on the keyboard to control your mouse cursor.

Switch Input Method

On iOS 8 or earlier, press "menu" key and space bar together to switch input method.
On iOS 9, hold "ctrl" key and press space bar to switch input method.
On other Android and Windows, press the keys specified by its settings.

More usage see user manual.

In the manual, it says the detection rate is 5 keystrokes per second.
In our testing, the detection rate is roughly as advertised. One thing we noted was that the previous keystroke need to be released before the second keystroke, otherwise sometimes it interferes with the detection of the second keystroke.
In other words, you can not type too fast like you are playing a piano.
But otherwise, the detection of keystrokes is really accurate, making this a very viable input solution.

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