Calm Clean Companion Ultrasonic Bark Stopper

A handheld trainer that gets your dog's attention with a high-frequency tone instead of a correction. You point it, press the button, and the sound interrupts whatever they're locked onto — the fence-line barking, the lunge at the mail carrier, the 6am alarm at the window.

No collar. No static. Nothing worn on your dog at all. It sits in your hand or your pocket, so the same unit works on a walk, in the yard, or at the front door.

Three things worth knowing before you buy. It works best on dogs that aren't already fixated — an interruption is a pause, not a training programme, and it does nothing on its own without a reward for the quiet that follows. Some dogs simply don't react to it, particularly a dog that already knows you're holding it. And it is not a substitute for working out why the barking is happening, which is usually boredom, alarm, or being left alone too long.

Rechargeable by USB. Range of roughly 16 feet. Small enough for a coat pocket.