Logitech Ergo M575 Wireless Trackball Mouse - Easy Thumb Control, Precision and Smooth Tracking, Ergonomic Comfort Design, for Windows, PC and Mac with Bluetooth and USB Capabilities, Black, MediumBrand Logitech Manufacturer Logitech, Logitech India Customer Care Toll free Number 1800 572 4730 (9: 00am to 6: 00pm Mon Fri) Colour Black Item Height 10. 7 Centimeters Item Width 50 Millimeters Standing screen display size 7 Inches Product Dimensions 16 x 5 x 10. 7 cm; 140 g Item model number 45776 Power Source Corded Electric Hardware Platform laptop like,pc Operating System Mac,Windows Average Battery Life (in hours) 24 Months Are Batteries