Virtual Keyboard wholesale china

Keyboard projection:
Light source: red diode laser
Keyboard layout: 63 keys/full sized qwerty layout
Keyboard size: 295 x 95mm projected keyboard size
Keyboard position: 60mm from VKB unit
Required projection surface: non-reflective, opaque flat surface
Visibility: good contrast up to 600 lux ambient illumination
Keystroke sensor:
Ambient illumination: works under all standard indoor illuminations up to 600 lux
Detection: rate up to 400 characters per minute
Detection algorithm: multiple keystroke support
Effective keystroke: approximately 2mm
Operating surface: any firm flat surface with no protrusions greater than 1mm
Bluetooth:
Bluetooth specification: Bluetooth v1.1 class 2
Bluetooth profile supported: HID and SPP
Range of frequency: 2.4GHz spectrum
Transmission range: 9m
Number of supported passkeys: 5
Electrical:
Power source: integrated, 3.6V rechargeable lithium-ion battery
Battery capacity: >120 minutes continuous typing
Charge method: included 100 to 240V AC wall adapter
Dimensions: approximately 35 x 92 x 25mm (1.38 x 3.6 x 1 inches)
Compatibility: supports for PalmOS 5, PocketPC 2003, Windows Smartphone, Symbian OS, and Microsoft Windows 2000/XP (Mac OSX will work but drivers are not provided, see the bottom of this page for details) look below for a list of specific compatible devices
Please note your device may still work properly if not on this list as long as it supports one of the OS listed above