Ambidextrous ergonomic trackball mouse The Kodak IMOUSE Q40. It incorporates the palm grip design where each user can rest his entire hand over the mouse. This design encourages users to move their cursor by rotating the track ball using their thumb and reduces the need of hand movement. It is cable-free by utilizing the 2.4 GHz radio frequency technology, offering a wireless range of up to 30 feet. It's also fully programmable, meaning every mouse button can be customized to your preferred function with its programmable driver. With its 5 levels of DPI resolutions (400-4800), the optical trackball provides superior accuracy and smooth motion, reducing hand movement and space.. Manufacturer: Eastman Kodak company. Manufacturer Part Number: IMOUSE Q40. Brand Name: Kodak. Product line: I mouse. Product Model: Q40. Product Name: IMOUSE Q40 wireless ergonomic trackball mouse. Packaged Quantity: 1. Product Type: mouse. [Pointing device] pointing device connectivity technology: wireless. Pointing device wireless technology: radio frequency. Movement detection: Optical. Movement resolution: 4800 dpi. Number of Total buttons: 7. Scroller Type: trackball. Scroll wheel. Ergonomic fit: symmetrical. [Interfaces/Ports] pointing device host interface: USB. [Physical Characteristics] Height: 2". Width: 4.5". Depth: 6.6". Weight (Approximate): 5.44 oz. [Miscellaneous] package Contents: IMOUSE Q40 wireless ergonomic trackball mouse 1 x USB receiver 2 x AAA battery 1 x quick start Guide. Environmentally friendly: Yes. Environmental Certification: week.