Electrical specification
Operating  voltage DC3.7V
Operating  current 70mA
Port USB1.1
Operating frequency 2.4GHz—2.483GHz
Operating distance  8～10m
Touching board resolution   800DPI

Physics and Mechanical property
Size 136mm×102.5mm×20mm
Rechargeable cable Micro USB Cable
Material for cover ABS
Weight 165g
Keys 76 pcs
Switch elastic force 80g±20g
Switch Life >1000,000 times
Material for PCB board FR-4 Electro gilding
Thickness of PCB 1.0mm 

Environmental condition
Operating temperature  0℃～+45℃
Stocking temperature   －15℃～60℃
Operating humidity ≤85%(40℃)
Stocking humidity ≤85%(40℃)
Depreciation experiment
Dropping highly naturally in the packing situation at 80cm height

System requirements
Android1.5、2.1 above（Need USB Audio to drive）
WinXP 、Vista 、Win7