I have dogra 2502 TB. Have friends I hunt with that have them also. I used other collars and I absolutely love these ones. Had for at least 4-5 seasons now, hunt hot, cold, wet. Never a problem. Did notice last year that the locate range is not as far as it used to be and may have to look at new batteries? But think that is normal. I also use them as yard collars when dogs are outside so they have been well used. Other friends have different models but I like the size of the transmitter better.
