Type: Classic Number of keys: up to 3 Number of keys: 3 Programmable keys: none Scroll method: Wheel Wireless connection: Yes Connection method : Bluetooth Type of power cells: 1 x AA Power cells included: Yes Type of light source: no Sensor capacity: From 1200 dpi Sensor capacity: 4000 Warranty for individuals: 2 years Color: Black Size: Standard Dimensions: 107 x 59 x 27 Polling rate: 1000 Hz Switch model: Optical Weight adjustment system: None Foot cover: Standard For which hand: Both Guarantee for legal entities: 1 Year Vertical mouse: None