Dell MS700 Bluetooth Travel Mouse Black 570-ABQN
Features
Effortless portability
A lightweight mouse
Coming in at only 56.9 grams (0.13 lb), take your travel mouse wherever you go without it weighing you down. 
Smooth turning, twistable design 
To activate the world's first 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.
Tailored to your work
Seamlessly connect
Link the mouse with up to 3 Bluetooth compatible devices and switch between them with the press of a button.
Quietly click 
With reduced clicking sound and touch-scrolling, work anywhere without disturbing your neighbors or your thought process.
Built for peace of mind
Long-lasting battery 
Do a lot more with fewer batteries with up to 24-month battery life