PRODUCT GRADING Refurbished Excellent > Very light scratches and light signs of use > Refurbished to the highest standards. Brown Box WHAT IS IN THE BOX Lenovo ThinkPad Bluetooth Laser Mouse PRODUCT DESCRIPTION 1200 dpi resolution. Advanced power management system automatically switches to low power mode during inactivity. The unique soft-touch finish offers ultimate all-day comfort. Unique battery compartment with hinge design securely holds and eases battery removal and installation. Exclusively contoured for both right and left-handed usageTilt wheel for four-way scrolling. Works on many surfaces; mousepad required only on glass or similar surfaces. Stealth Black colour complements ThinkPad systems. Wireless Mouse Wireless mice transmit radio signals to a receiver connected to your computer. The computer accepts the signal and decodes how the cursor was moved or what buttons were clicked. While the freedom or range with wireless models is convenient, there are some drawbacks. The decoding process, for instance, means that a wireless mouse is generally not as responsive to gestures as a wired mouse. Gamers in particular might find the lag frustrating. That said, there are specific wireless mice designed for gaming that address the latency issue in their design and have quicker response times. For most users, however, the lag or lost accuracy with a wireless model will be negligible.Bluetooth MouseWireless mouse designs and Bluetooth mouse designs tend to look very similar, as neither need a wired connection to operate. Most wireless mice models use a dongle that connects to your PC, and the mouse communicates back and forth in that manner. A Bluetooth mouse, however, utilizes an internal Bluetooth connection on your PC, allowing you to connect the mouse to multiple devices at a time.Keep in mind, however, that not all devices have Bluetooth connections. If your computer does not have an internal Bluetooth receiver, you can get a USB receiver that can be plugged into your computer to use with your Bluetooth mouse and other Bluetooth devices. PRODUCT INFORMATION Brand ?- Lenovo Colour ?- Black Product Dimensions - ?9.65 x 9.65 x 3.56 cm; 100 Grams Voltage ?- 240 Volts Energy Efficiency - Class ?A++ to G Annual Energy Consumption - ?1 Kilowatt Hours Per Year Special Features - ?Bluetooth^PC Mouse^PC / Mac^4-ways Item Weight ?- 100 g