Anti Barking Collar Test Meters & Detectors just open the transparent cover

just open the transparent cover and find the side refuelling hole to refuel

each covering a different area

so you can easily control it without fiddling around with wires beneath your desk

charged by USB port

Compact appearance

Anti Barking Collar Test Meters & Detectors just open the transparent coverDescription: Easy To Use: This automatic anti barking device has a built in sound detector, when the dog barks, the detector receives and recognises the dog's barking, it will trigger the punishment function of the anti barking device (including sound, and sensor), to achieve the effect of anti barking. Power On Off Button: Press the power on off button to turn on the unit and hear a ticking beep. Adjustable Sensitivity: Press the + or button to