Aeteretk Updated At-919C Replacement Receiver Rechargeable and Waterproof Auto Anti Bark Collar Aetertek Top AT-919C Replacement receiver. Waterproof and Rechargeable using 5.0MM pore size on charging port which can be charged repeatedly and never deformation and worn, 100% Safety and reliability. Aetertek collar with 3 types correctional methods: beep, vibrate and shock. Respond quickly, and can keep working until you release the function button. use the most advanced design, electromagnetic induction switch solution, on the power ON/OFF switch to ensure unlimited accurate switch, more convenient and reliable match and got all necessary certification which meet USA and EU standard, such as CE, FCC, RTTE, ROHS and so on.