Cross computer control: Game changing capacity to navigate seamlessly on 3 computers, and copy paste text, images, and files from 1 to the other using Logitech flow Dual connectivity: Use with upto 3 Windows or Mac computers via included Unifying receiver or Bluetooth Smart wireless technology. Gesture button- Yes Advanced ergonomic design: Perfectly sculpted, hand crafted shape supports your hand and wrist in a comfortable, natural position Auto shift scrolling: Speed adaptive scroll wheel auto shifts on the fly from click to click to hyper fast scrolling Rechargable battery: Upto 70 days of power on a single charge