Please Note: Most orders are handled within 2-3 business days. Our stated 5 business days handling time applies only in rare circumstances. Our stated free shipping cost for large/bulky items (large furniture, appliances, electronics, etc.) is only applicable for orders with shipping addresses within mainland USA (Upper 48 States). Customers located outside of the mainland USA region (Guam, Hawaii, US Virgin Island, Alaska, Puerto Rico, etc.) must contact us to make shipping arrangement before submitting an order for any such large bulky items. Failure to adhere to the above requirement for large/bulky items, may result in automatic order cancellation. Convenient controls: Moving between documents or browsing your favorite websites is a breeze with large, easy-to-reach Back/Forward buttons and the precision scroll wheel. USB Receiver Height: 0.74 in, Width: 0.57 in, Depth: 0.24 in Features: Ergonomic comfort design, relaxed hand and arm: The comfortable, sculpted ergonomic shape naturally fits your hand. Smooth thumb control, precise tracking: Great cursor control on any surface. Adjust the cursor speed with Logitech Options software. Perfect for tight workspaces: Because the trackball doesn?t move, it?s perfect for tight workspaces and busy desks. 2 ways to connect and multi-OS: Connect simply with Bluetooth or the USB receiver and never worry about drop-offs or lag up to a 33 ft (10m) range. Nominal value: 400 dpi Plastic parts in ERGO M575 include post consumer recycled plastic (Graphite/Black: 50%, Off-White: 21%). Uses FSC-certified paper for responsible packaging. Up to 24-month of use from a single AA battery with the USB receiver, you might just forget your trackball uses batteries at all. Convenient controls: Moving between documents or browsing your favorite websites is a breeze with large, easy-to-reach Back/Forward buttons and the precision scroll wheel. USB Receiver Height: 0.74 in, Width: 0.57 in, Depth: 0.24 in Package Includes: 1 x Office wireless mouse Listing and template services provided by inkFrog Please Note: Most orders are handled within 2-3 business days. Our stated 5 business days handling time applies only in rare circumstances. Our stated free shipping cost for large/bulky items (large furniture, appliances, electronics, etc.) is only applicable for orders with shipping addresses within mainland USA (Upper 48 States). Customers located outside of the mainland USA region (Guam, Hawaii, US Virgin Island, Alaska, Puerto Rico, etc.) must contact us to make shipping arrangement before submitting an order for any such large bulky items. Failure to adhere to the above requirement for large/bulky items, may result in automatic order cancellation.