Petrainer Training Collar for Dogs - Waterproof Rechargeable Dog Training E-Collar with 3 Safe Correction Remote Training Modes, Static, Vibration, Beep for Dogs Small, Medium, Large. - We've used these collars with our dogs for several years and they have worked well for us. Relatively inexpensive for 2 collars. Some models have range upwards of 300+ yards. Clicking the image will take you to Amazon for a hassle free order.