We have a spray collarthat we have used on various barkers over the years. It has a remote control with 3 settings.
1) Beep 2) short spray 3) long spray
It squirts a citronnella spray that is quite effective. IMHO more pet friendly than a shock collar.
2012 Ram 3500 4x4 CCLB/DRW Laramie, Cummins 6.7 HO, 68RFE, 4.10 Max Tow, Firestone Ride-Rite, 50 Gal Transfer Flow
2008 Citation Supreme Platinum XL 34.5 CKTS, GVW 15500, MorRyde, 4 wh disc brakes, -30C Polar Pkg