Specifications 1. 2014 new arrive laser projection keyboard.

2. Small size for portability.

3. cheap price.

2014 New arrive Bluetooth Laser projection keyboard?for smartphone; tablet PC or computer. ? ? ? ? Specifications: ?

Physical Dimension:	36mm x 74mm x 18mm
?Weight:	Approx. 40g
Keyboard light source:	Red laser diode
Keyboard language:	English
Keyboard layout:	20.8mm sized QWERTY layout
Projection size:	Approx. 241mm*101mm
Projected Keyboard location:	Approx. 97.9mm from keyboard device
Keystroke Sound:	Built in buzzer(Mute on/off the sound)
Visibility:	Good contrast up to 1800 lux ambient illumination
Detection rate:	Over 400 characters per minute
Detection algorithm:	Multiple key stroke support
Effective key stroke:	?Approx. 2mm
Required projection surface:?	Non-reflective, opaque flat surface?
Power source:?	The USB bus power
	Lithium-ion battery power
	The DC input power
Battery capacity:?	700mAH(Max) 3.7V Replaceable soft-pack type
Charger:	Rating 800mA @ 5V
Interface:	USB 1.1 and 2.0 for PC
	Bluetooth(v2.0 class 2,class 3 )HID? for Mobile devices
?Switch mode:	Switch the active/Standby mode manually
?Power consumption:	max. 2.4W 4.2V
?Use temperature:	Approx. 0~50°C
Storage temperature:	Approx. -20~50°C
Software compatibility:?	?All USB HID Compliant OS, All Bluetooth HID Compliant Mobile Device, Windows XP/WINDOWS 7 or Higher, LINUX, Ipad ,Iphone,Android 2.2 or Higher

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