I'm not a fan of shock collars but for 35 bucks on flea bay, I picked up a remote controlled, dual sound and shock collar.
800 Yards Remote LCD Rechargeable Shock Dog Training Control + Pet Nail Scissors | eBay
I set it at "2" on the 1-5 scale and have so far only used the sound alert. Beeps like a cell phone. The puppy immediately stops yammering and does not seem to shy away when I put it on in the morning like other dogs I have seen....this is my first unit.
Anyways, thought someone may appreciate the input on these things.
Charges off a USB or 110v, 3 days on the collar, 6 on the remote. Even w/o the collar she tends to bark less. I may pick up another collar as the remote controls 2 units.