tallahassee Sleek Ergonomic Curved Wireless 2.4 GHz Optical Slim Mouse (Green) Frequency: 2402MHz-2480MHz Wi-Fi Range: 10m Wireless Transmission Frequency: 2.4GHz Powered Supply: 2 Pcs AA Batteries (Not Included) Size(L x W x H): 11cm x 5.6cm x 1.8cm/4.33" x 2.20" x 0.71" (Approx.)