High definition laser technology offers improved cursor tracking on any surface compared to optical mice. 2.4 GHz frequency for a range up to 26 feet. Unique swivel design offers easy access to batteries and storage space for the mini-receiver?no more lost components and perfect for travel. Low battery indicator. Transfers to sleep mode to conserve battery when not in use. On/off switch. Automatically establishes wireless link between mouse and receiver. Connector/Port/Interface: USB; Left/Right Hand Use: Left/Right; Mouse Technology: Laser. , Optical mouse-friendly pad offers excellent tracking. "An office essential! Convenient