Logitech Signature M550 Wireless Multi-Device Mouse Color:Graphite (Large) Whether you use M190 with

Whether you use M190 with a laptop

8 oz (135 g (including 1XAA battery)

Quiet Typing

Connection Type: Bluetooth Smart and 2

Logitech Signature M550 Wireless Multi-Device Mouse Color:Graphite (Large) Whether you use M190 withSmartWheel Scrolling Make scrolling work for you with Logitech SmartWheel. Get line by line precision when you need to focus on the details, and scroll super fast when you just want to breeze through lengthy pages. Automatically switch modes with the flick of your finger. The Perfect Fit for Your Hand Choose the Signature M550 that fits you best. We recommend the M550 for small to medium hands and M550 L for large sized hands. Unsure which mouse is