1 Merino is one of the softest types of wool available, because of finer fibers and smaller scales.  Merino has an excellent warmth-to-weight ratio compared to other wools, in part because the smaller fibers have microscopic cortices of dead air, trapping body heat similarly to the way a sleeping bag warms its occupant.
Transistorâtransistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors.
Ultrasonic frequency is defined as the frequency of an acoustic wave at a frequency above the audible range for humans. This system operates at a base frequency of 40,000 cycles per second or 40 kilohertz (kHz). Due to the design of the âVibra-barâ transducer âSimultaneous Multi-Frequencyâ is produced.