Specifications:

• Mini USB Receiver
• Receiver and charger 2 in 1
• Convenient for right hand or left hand users
• Radio frequency and optical technology
• Freely 360-degree use within 1.5m radius
• Automatically power-saving sleeping function
• Zoom in/out functions
• All injection colors available
• High resolution:800dpi
• Working on any surface except glass
• Compatible with Win 9X/2000/XP/ME/NT