Aetertek AT-216S-350S Waterproof Remote Dog Training Shock Collar, 2 Dog 1 warning sound, 1 vibration and 7 levels of progressive shock Rechargeable and water-proof receivers with long and short prongs for all coat types Solid remote range of up to 400-yard and signal can pass through walls and fences Suitable for dogs from 15 to 150-pound 1 year warranty