Both. I am considering another Astro 320 (refurbished or used-about $350). I have a working DC40 collar and a T5 that needs a trade in for refurb($100). Does anyone have an opinion? I'm very happy with the 320 although I have struggle with water getting into several collars now. If I upgrade to the new Garmin with trainer it would obsolete my old collars. I would spend $7-800 for the bundle with collar. if I stayed with the Astro 320 setup I could get back to two collars for $450. Or did anyone find it???