Bark Stopper Product Description Bark Stopper Collar Features Fully Automatic Intelligent Chip Design: The upgraded color screen and intelligent chip offer increased sensitivity and effectiveness. Accurate Detection: The intelligent bark recognition system and motion detection minimize false triggers by accurately detecting your dog's bark. Multiple Mode Selection: Choose from Vibration, Electric Shock, or Ultrasonic modes, each with 7 sensitivity levels to tailor the response to your dog. Magnetic Charging & Lightweight: Only 2 hours of charging supports 15 days of use. Weighing just 76g, it's light and features an adjustable collar for various dog types. Waterproof and Dustproof: The IP67 design ensures the bark stopper functions effectively in diverse environments. Specifications Material ABS + Nylon Working Voltage 3.7V Battery Capacity 300mAh Input Voltage DC 5V / 1A Waterproof Rating IP67 Operating Temperature -10°C ~ +50°C Storage Temperature -20°C ~ +60°C Charging Time 2 hours, lasts for 15 days per full charge Optional Training Modes Vibration Mode, E-shock Mode, Ultrasonic Mode Adjustable Range of Strap 5-25 cm / 1.97-9.84 inches Product Dimensions 76mm x 37mm x 30mm Product Weight 76g Package Size 10 x 8 x 6 cm Package Weight 147.5g Package List 1 x Bark Collar 1 x Nylon Strap 1 x User Manual 1 x USB Charging Cable 1 x Test Suit