Don't need one but cheapest according to 3x Camels.
Good deal if anyone needs a wireless mouse.
Seems to be ~$25 elsewhere.
Other colours available for a slightly higher price
The Lenovo 520 Wireless Mouse is your ideal companion: perfect for on the go or office use. A plug-and-play device, it provides cordless convenience with 2.4 GHz wireless technology via nano USB receiver. Receive all-day comfort and maximum ergonomics with this unique and contoured design and durable soft touch finish. The Lenovo 520 Wireless Mouse is simply the mouse-of-choice: easy-to-use, mobile and most importantly, reliable.
- Wireless via 2.4 GHz wireless technology via nano USB receiver
- Mid-size mouse with ambidextrous design
- Optical sensor with 1000 DPI resolution for smooth control
- Durable soft touch finish for all day comfort
- 1 AA battery with up to 12 months battery life (may vary based on usage)