2 Training Modes & 5 Adjustable Sensitivities: The anti-bark collar has 2 training modes, including the default setting mode “beep + vibration + harmless static shock” and “beep + vibration” mode “, and the mode adjustable from 1 to 5 levels of sensitivity. Freely choose the most suitable mode and level according to your needs, and each training mode has its own different color, which can help you train your dog more professionally. Great show : IP 67 waterproof rating for dogs and a rechargeable shock loop ensure safe use indoors and outdoors in all weather conditions. Equipped with an advanced TPU reflective strip for easy night travel! And a spare black nylon strap, the sturdy material is scratch resistant and easy to clean. Built-in USB rechargeable 480mA battery. Charging time is 2-3 hours and normal use is about 15 days 【Soft silicone cap for better protection】: The contact point of the receiver adopts the latest material in soft silicone, the flexibility of the silicone cap can