MOJO Silent Quiet Ultrathin Clear Optical Wireless LED Mouse BLUE Ultrathin Quiet Wireless Silent Compact Mouse with LED Light Easily connects with your computer, laptop, and other devices with included USB adapter Powered by 1 AAA battery (not included) Frequency: 2.4GHz, Transmission Range: 10m MOJO LLC offers an exclusive manufacturers warranty for 60 days with this mouse. This warranty is exclusive to sales through MOJO only. Purchases made from unauthorized resellers are not eligible for this warranty.