Model AMOUSEB Quantity 1 Color Black + grey Material ABS Connection Method Wireless Bluetooth Version No Connection Type USB Operation Distance 15m Tracking Method MEMS gyroscope Resolution 500~2400DPI dpi Power Supply 2 x AAA (not included) OS System Android Windows XP Windows Vista Windows7/8 etc. Other Application: Android TV / TV box; Remote control for tablets or phones linked to TV; HTPC based on Windows / Linux; PPT control for teaching training or business speech; Control for DVR of SPS; Meets ergonomic design can hold for longtime w/o feeling tired; Multi-functional Packing List 1 x Wireless mouse 1 x USB Receiver