Astko B300 Bark Control CollarAstko B300 Anti Bark Collar The B300 Bark Control Collar is designed to manage your dogs barking with flexibility and ease. Offering three distinct training modesbeep, vibration, and shockit ensures that you have the right method for your dogs needs. The collar features both automatic and fixed modes, with an IPX3 waterproof rating for reliable performance in different weather conditions. Key Features: Modes: Beep, Shock (Static Stimulation)