HD car radios are no different than regular radios, other than their more complex decoding hardware.
Clock radios are better than regular clocks because you can set an alarm so that it wakes you with music as opposed to the buzzer that sounds at the end of a sport period.
Uniden marine radios are waterproof so they stay completely dry if submerged, and they float! Most other marine radios are water resistant so there is no guarantee of its performance if wet. Uniden marine radios cost much less than comparable marine radios with the same features, making Uniden a good buy.
Satellite radio's are much more efficient than normal radios. Regular radios transmit a frequency to a local radio tower, whereas a satellite radio transmits to a satellite. There it is able to produce a further reach and keep you from nasty static.
Sky mail works the same as email as it is much faster than regular mail.
romaine lettuce is different because it is much fresher than reg lettuce.
A metal or plastic box containing electronics, not much different than other electronic devices (e.g. amplifiers, TV sets, radios, microwave cooker).
intergrated circuits
A regular pentagon is both equiangular and equilateral.
aberrant beats are those that are not pvcs but are usually wide and much different than the regular rhythm
No
yes watch batteries are different from regular batteries because watch batteries are much smaller and hold less electrical charge. they would not work in anything else other than a watch.
No. The acronyms stand for different, non-overlapping frequency ranges. Since the #1 immutable requirement for radios to be able to talk to each other is that they be on the same frequency, and since HF, UHF, and VHF radios are by definition on different frequencies, that match would be harder to operate successfully than a mixed marriage.