The unibody model debuted in October 2008 in 13- and 15-inch variants, with a 17-inch variant added in January 2009. Called the "unibody" model because its case was machined from a single piece of aluminum

The switches used in Logitech Silent Mice are made of a rubber actuator that dampens both the vibration and the sound. A red plastic cap covers the rubber actuator to improve the switch's tactile feedback and lengthen its lifespan.

Whether you're on a crowded bus or on a plane, the Buds 2 Pro ANC will deliver the kind of surrounding world silencing you'd want, so you can enjoy your music fully in peace. Of course, you can turn off ANC and switch to Ambient sound if you actually want to hear what's happening around you.