Review on AHJDL Rechargeable Reflective Dog Bark Collar - 5 Adjustable Sensitivity and Intensity Levels - 🐶 Dual Anti-Barking Modes - Rainproof - No Barking Control Shock Collar for Small Medium Large Dogs by Anurag Case

The initial setup of the collar (ie setting the vibration or the shock etc.) was a little tricky but the instructions were very helpful and changing modes got easier each time. The collar is EXTREMELY sensitive when set to level 5. When I say EXTREME, I mean the collar works when an OTHER dog barks. Luckily we set the mode to vibrate lol. Battery life seems good so far, and it's certainly doing its job the way we wanted it to! With a $5 discount coupon, the cost was about $20, and IT'S WORTH IT! I would buy again in a heartbeat. The only thing I could suggest is to add different color options for the collar, which is just for looks, otherwise everything worked beautifully! Thanks for such a great product!