Kensington Pro Fit® Ergo TB450 Trackball - Mouse - Optic - 7 buttons - Bl?

Trackball, ergonomic, optical, 7 buttons, wireless, Bluetooth, 2.4 GHz, wireless USB receiver', {'Producer': 'Kensington', 'Item number': '3199182', 'Model' : 'K72194WW', 'EAN': '0085896721949', 'To Manufacturer's Website': 'www.kensington.com'}, {'Producer': 'Trackball', 'Item Number': 'Nano Wireless USB- receiver', 'Model': 'Yes', 'EAN': '9.344 cm', 'To manufacturer website': '5.01 cm', 'Product description': '13.816 cm', 'Type of device': 'AA type ', 'Connection technology': 'Plastic', 'Dimensions WxDxH': 'Wireless', 'Weight': '253 g', 'Wireless receiver': '18 months', 'Change detection technology': 'Optical', 'Number of buttons': '7', 'Performance': 'Real-time sensitivity switching 400/800/1200/1600 dpi', 'Features': '5 programmable buttons, DPI -switch, front button, back button', 'Battery': 'AA battery', 'Operating system required': 'Plug and Play, WHQL, CB, FCC, AES, RoHS, BQB, SRRC, RCM, ISED' , 'Årecycled product content': '50% - made from ?recycled plastic', 'Ergonomic design': 'Windows 10 or later, Apple MacOS 10.14 or later, Google Chrome OS 91 or later, Apple iPadOS 16', 'Width': '10.4 cm', 'Depth': '5.9 cm', 'H?jd': '16.9 cm'}, '0085896721949'