Bluetooth virtual laser projection keyboard with USB in good quality

Product Description

Physical Dimension:	20mm x 40mm x 80mm
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

Contact Information:

ShenZhen Guangyuweiye Electronic Co.,LtdWeb:http://gywy.en.alibaba.comEmail:sunny(at)gywyic(dot)comSkype:sunny.sunny808Tel:86-13631655589 PaymentTT, West Union , Paypal Our Services

1.We do our best to serve our customers.

2.We will refund you if you return the items within 15days of your receipt of the Virtual laser keyboard.3.For any reason(After buying the damage due to improper use is not in the scope of the seller for compensation.4.However, the buyer should make sure that the items returned are in their original conditions. 5.If the items are damaged or lost when they are returned, the buyer will be responsible for such damage or loss,and we will not give the buyer a full refund. 6.The buyer should try to file a claim with the logistic company to recover the cost of damage or loss. 7.The buyer will be responsible for the shipping fees to return the portable bluetooth speaker.