Once there is no longer a need for ventilatory assistance and/or protection of the airway, the tracheal tube is removed; this is referred to as extubation of the trachea (or decannulation, in the case of a surgical airway such as a cricothyrotomy or a tracheotomy).
The top-of-the-line 60GB device can hold as many as 15,000 music files or 150 hours of video. My friend Lew let me see his brand new 60GB iPod and see a video he had bought on iTunes. I was very impressed with the video quality. There are other terrific portable audio/video devices out there as well. I really like the Archos AV 500 that I tested recently. It comes in a 30GB model (up to 130 hours of video for $499.95) and a 100GB one (up to 400 hours for $699.95). I particularly love the sharp 4-inch screen.
Ultrasonic pest repellers are electronic devices that emit high-frequency sounds designed to repel, injure or kill household pests, such as rodents and insects. Whether they're actually effective at doing so has been disputed by testing labs and the U.S. Federal Trade Commission (FTC).