Specifications Cheap Virtual Laser Projector Keyboard,Mini Bluetooth Laser Keyboard

1.Laser projection keyboard

2.Bluetooth

3.Mouse fuction

Cheap Virtual Laser Projector Keyboard,Mini Bluetooth Laser Keyboard,infrared virtual laser keyboard ? ?? ? ? ?? ? ? ? ? ? ? ? ? ? ? ?? ? ?

Specification:	?
Pattern Projector	?
Keyboard light source:	Red laser diode
Keyboard layout:	Approx.19mm sized QWERTY layout
Projection size:	Approx.?100mm(H)*240mm(W)
Projected Keyboard location:	Approx.80mm from keyboard device
Required projection surface	Non-reflective,opaque flat surface
?	?
Electrical Characteristics	?
Recognition rate	Over 350 characters per minute
Operation Surface	Any opaque flat surface
physical Dimension:	78mm x 40mm x 20mm
?Weight:	Approx. 60g
Keyboard language:	English
Charger:	Rating 5V 500mA
Battery?capacity:?	Polymer rechargeable battery,600mAh(MA X) @ 3.7V
Battery working time	150 minutes
Battery charging time	90 minutes
Keystroke Sound:	Built in buzzer(Mute on/off the sound)
Visibility:	Good contrast up to 1800 lux ambient illumination
Effective key stroke:	?Approx. 2mm
USB interface	USB 1.1 and 2.0.USB,HID Ver.1.0
Bluetooth	v3.0(class2),HID Profile Ver.1.0
Frequency Range	2402-2480MHz
Channel	79
Modulation	GFSK
?	?
Environmental Conditions	?
Working Temperature	Approx.-10~40°C/90%RH
Storage Temperature	Approx.-20~40°C/~90%RH

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