The BlueTrack technology on this Handshoe mouse enables reliable navigation on a variety of surfaces without the need for a mouse pad. The Light Click design and full hand support reduce strain, providing comfortable use. BlueTrack Technology: For pinpoint accuracy on most surfaces, without the need for a mouse pad. Right-Handed Light Click Design: With full hand support reduces strain for added comfort during use. Wireless Connectivity: Provides a wide range of motion while navigating. USB Interface: For easy connection to your PC or Mac. Color: Black. Ergonomic: Yes. Mac Compatible: Yes. Left/Right Handed Design: Right. Battery Type: Built-in Rechargeable Lithium-ion. The type of battery used to power the phone, usually NiCd (nickel-cadmium), NiMH (nickel-metal hydride), or LiIon (lithium-ion). Battery Quantity: 1. Pointing Device Type: BlueTrack Mouse. Connection Type: Wireless USB. Port Connection: System Requirements: PC or Mac; USB port. Dimensions: 4.5 inches high x 5.75 inches wide x 1.75 inches deep.