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**B Grade** Wireless Optical Desktop Comfort ver3.0 - OEM
B Grade items may have been used, have damaged packaging, missing accessories or a combination of these.
Some items may have scuff marks or slight scratches but should otherwise be an operable product.
- Zoom Slider easily zooms in on images without taking your hand off the keyboard
- Comfort Curve design designed by ergonomic experts for enhanced comfort and style
- Tilt Wheel Technology delivers smooth, accurate performance as you scroll
- Three times the battery life of competing products
- Smart Receiver technology automatically notifies you when interference is present, and then helps you reduce it