- HP 2.4GHz Wireless Optical (Ocean Drive) Mobile Mouse - Stay Connected - Advanced 2.4GHz wireless technology for less interference and longer range of operation to work further away - Travel with confidence - Optical sensor with adjustable sensitivity (1250 CPI default, 1750 CPI max) works on many surfaces - No more lost receivers - The micro-receiver is so small you can store it inside the mouse - Comfort - Rubber sides and symmetric design provide comfortable and secure grip for left or right hand use - Improved control - Smooth scroll wheel with middle rubber trim for great feel scrolling up, down, left and right