| 1 AA Alkaline Batteries required and included |
| 1 x AA Alkaline Batteries required and included |
| 3 8-month battery life. Use your mouse for up to eight months without having to change batteries |
| 8-month battery life - use your mouse for up to eight months without having to change batteries |
| Ambidextrous design makes it comfortable either way |
| BlueTrack Technology |
| BlueTrack Technology, which combines the power of optical with the precision of laser for remarkable tracking on virtually any surface |
| Conserve battery power by turning off your mouse when not in use |
| Conserve more battery power by turning your mouse off when not in use |
| Leave the Nano Transceiver plugged in when you're on the go, or stow it in the mouse |
| Microsoft BlueTrack Technology combines the power of optical with the precision of laser for remarkable tracking on virtually any surface |
| Plug-and-go nano transceiver |
| Three-year warranty |
| Use your mouse with your left or right hand. Ambidextrous design makes it comfortable either way |
| Use your mouse with your left or right hand-ambidextrous design makes it comfortable either way |
| Use your mouse without power interruption for up to 8 months on a single battery. Battery status indicator tells you when battery power is low |