describe Operating voltage: 3.7V; Power consumption: standby current 20uA, standby current 300uA; Battery capacity: 300 mAh; Rated input: DC5V/1A; Waterproof level: IP67; Working temperature: -10C°~+50C°; Storage temperature: -20C°~+60C°; volume: 70mm*37mm*40mm; Net Weight: 67g 3 Effective Training Modes: The dog bark control collar has 3 modes: vibration, shock and sound. Press the mode button to adjust the shock and vibration modes from 0 to 8 levels. Level 8 is the most, level 0 means disable this mode. Depending on your dog's nature and behavior, you can freely combine these modes to stop your dog from barking. 7 ADJUSTABLE SENSITIVITY LEVELS: The anti-bark collar has 7 levels of sensitivity, which can effectively detect the barking of dogs of all sizes. Choose the appropriate sensitivity level based on your dog or the environment at the time. Level 7 is the most sensitive and Level 1 is the least sensitive. The LED display is very useful to see which mode is activated and its