The Elecom DEFT PRO is the first trackball to offer three connection types in one device: a wireless connection via Bluetooth or a wireless connection via a 2.4 GHz USB dongle, and thirdly a wired connection via a USB cable. A good update from the regular DEFT model, this is a great new option for smaller finger-operated trackballs.
The Kensington Expert Mouse, one of my favorite trackballs, is now available as a wireless model, the first Bluetooth trackball! It also features a USB dongle if you don’t have Bluetooth.
If you are travelling and still want that trackball comfort, maybe the Kensington Orbit Wireless Mobile is a good choice. Wireless, small and it doesn’t move (like all trackballs actually) this is a great companion for people that often set up their laptop on a small Starbucks table.
The Logitech M570 Wireless trackball is sexy, smooth and smart. The M570 features a wireless connection, thumb-operated scrollwheel and 5 buttons including Back/Forward. The design might be a bit small for large hands, but overall, this is a very good trackball and currently the best selling trackball.
The Logitech Cordless Optical Trackman is a strange beast, a one-eyed beetle from outer space that could scurry away from your desk any moment. Once you realise that it is just patiently waiting for your orders, you put your palm on the extra smooth surface (it’s really nice and soft) and discover that this serious trackball means business.
Logitech recently replaced this Cordless Trackman Wheel with the new wireless M570, and is currently only available in eBay. The Cordless Trackman Wheel is slightly bigger than the M570 and has only two buttons.
The Speedlink Aptico SL-630001-BK is a very good thumb-operated wireless trackball: similar to the best selling trackball Logitech M570 (which can be seen as one of its direct competitors) but with a better build quality, easily accessible DPI selection button, and its secret weapon, the more versatile and solid scroll ‘4D’ scroll wheel.