Aetertek At-918C 600 Yard Waterproof Remote Control Training Collar Shock Trainer Auto Anti Bark Feature for 1 Dog Rechargeable Collar Purpose-designed big and glove-friendly rubber buttons to withstand repeated usage 600 yards (550m) remote control range,the signal can pass obstacle such as wall ,fence etc Adjustable 9 levels for shock correction, beep and vibration function. Auto anti bark feature.Submersible receiver (genuine 100% waterproof,please fasten the lid into the charge port to prevent water come into). Rechargeable transmitter and receiver,save money to buy replacement battery, Adjustable TPU strap, works for small, medium and large dogs weighing from 15 to 150 lbs.