The Barkless Pro Anti-Bark Collar by E-Collar Technologies is the best bark collar to control howling, whining and general barking. It features an adjustable vibration sensor and 8 levels of static correction. Rechargeable and waterproof. The Bark Counter is a fantastic feature for tracking the progress of your dog's barking behaviour when you're not home. The collar module has an LCD screen that displays the number of times the collar has been activated.