. Your on-the-go workday becomes more portable than ever with this lightweight twistable mouse featuring multi-device connectivity that easily stows in any bag or travel case. A lightweight mouseTake your travel mouse wherever you go without it weighing you down. Smooth turning twistable designTo activate the twistable mouse that connects via Bluetooth to multiple devices just give it a twist. Twist it again to power off and flatten the mouse making it easy to stow in a small compartment. Seamlessly connectLink the mouse with up to 3 Bluetooth compatible devices and switch between them with the press of a button. Quietly clickWith reduced clicking sound and touch-scrolling work anywhere without disturbing your neighbors or your thought process. More responsiveEasy and reactive touch-scrolling allows you to move up and down the page faster. Enhanced precisionWith up to 4000 dpi (dots per inch) control every aspect of your day and customize mouse sensitivity to your needs. What's in the box? . Dell MS7002 AAA batteriesSoftware. .