Refrigerators
Freezer units are used in households as well as in industry and commerce. Commercial refrigerator and freezer units were in use for almost 40 years prior to the common home models.
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
Your speaker is waterproof, splash resistant, and dust proof. It is rated IP67 and IP64. You can immerse the speaker in water for up to 30 minutes at a depth of up to 3.3 ft (1 m). It can also be used while showering and in the rain or snow.
Logitech 2.4 GHz Digital Cordless for Business features frequency agility. With this technology, the Logitech mouse or keyboard that encounters any interference from another cordless device will automatically identify and switch to a more “quiet” location in the band to transmit data.