Mojo - Bluetooth Silent Mouse Optical Wireless Quiet Mouse Black Easily connects with your computer, laptop, and other Bluetooth enabled devices. Please note iPads, iPhones, and most other tablets and smart phones do NOT work with computer mice. Powered by 2 AAA batteries (not included). Frequency: Bluetooth V3.0, 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. Troubleshooting Tip: If you have trouble connecting the mouse: Make sure to hold the black button on the bottom of the mouse for 5 seconds, if that does not work try pressing the button again or turning on/off the mouse and the Bluetooth feature on your computer