I highly recommend this for replacement with the super-short coat dogs: https://www.amazon.com/Comfort-Adapter-Dogtra-remote-collars/dp/B004HDZP9M

I'll dig out my collars and show you the tips.
As for the hands-free option, somebody else needs to chime in. I'm so used to the receiver that it's second-nature to hold and operate. One more gadget right now would be as useful as a hole in my head. It seems more of a discretionary option for people who need to "hide" the transmitter or use the transmitter hand for other things, like treats or leash management. I'd be intrigued on hearing opinions about it too.

Pupdate: I pulled the trigger on a Dogtra 200C and a comfort pad. I just wanted a small receiver that would work well for Pepper, and I think I was just getting greedy with the handsfree option on the ARC lol. Thanks everyone for your help!