Product name : Wireless trackball keyboard
Model : PTK-300
Color : Black
Interface : USB
Frequency : 2.4GHz
Features : Trackball/ Silicon Skin Attached
Key number : 78 Keys
Language : English & Chinese
Receiving distance : 10 meters
Dimensions : W260x D113 x H25 mm
Weight : 306g (excluded battery)
PACKAGE
Dimensions : 310 x 150 x 50mm
Weight：479g
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