This is the bluetooth version which is an upgrade from the standard model, simply connect it to your pc and you're good to go! NO DONGLE NEEDED! Compatible with a unifying dongle (not included) Colour:Graphite Style Name:Modern Network Connectivity Technology: Bluetooth, 2.4GHz wireless Product Features: Wireless, Portable, Programmable Buttons, Ergonomic Design, Rechargeable Movement Detection Technology: Optical Item Weight: 145 Grams Item Dimensions:12.6L x 4.8W centimetres Unit Count: 1.0 count Number of buttons: 7
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