Just wanted to add, I have tested the DLR, DTR and UHF business radios head-to-head, and this is why I know the DTR/DLR have about the best range of any UHF or VHF radio. The smaller antenna of the DLR does NOT reduce range in any appreciable way. In my tests, there was only about a half block difference in range in a dense residential area between the DLR and the DTR.
The DTR does give you better sound, simply because of the larger speaker. The DTR can also do one-to-one calling easier, plus it has a more professional “look” to it - which may or may not be important to you. But the DLR is so simple, especially if you take the advice of my friend above and program them off the factory default channels. You don’t need a programming cable or software to do this on the DLR; they are simple to program right from the radio.
Interestingly enough, it has been a common principle among two-way radio users that VHF radios are better for outdoors because they can penetrate foliage better, and UHF is better in urban areas because they can penetrate buildings better. The DTR/DLR series is in the upper end of the UHF spectrum (900MHz) but in my tests, I have found them to outperform BOTH VHF and UHF indoors and out.