Brand DELUX Model M618 Quantity 1 Color Black + Dark Grey Material ABS plastic Connection Method Wireless Bluetooth Version No Connection Type USB 2.0 Operation Distance 10 meters Cable Length cm Tracking Method Laser Laser Type Red Laser Resolution 800~1600 dpi Power Supply 2 x AAA batteries (included) OS System Windows XP / Win7 / Vista Mac OS X 10.4 or later Other Acceleration: 8G; Scan rate: 8000fps; Key service life: up to 3 million times; Working voltage: 3V current: Packing List 1 x Wireless laser mouse 2 x AAA batteries 1 x USB receiver 1 x Chinese user manual