SMALL BARK CONTROL works by static stimulation. This collar has been designed to reduce the number of nuisance barks. The software includes 3 operating modes to adjust the product on your dog's temperament setting: 1. Beep sound, 2. Beep sound + progressive stimulation (short then long) for sensitive dogs and 3. Beep sound + progressive stimulation (short then long) for difficult dogs.

Features:

• Rechargeable
• Ultra light : only 17 g (0.6 ounces)
• Reduced size: 40 x 21 x 26 mm (15.75" x 8.26" x 10.24")
• Battery level indicator
• Progressive stimulation for sensitive or difficult dog