The SportDOGA(R) Brand YardTrainer 100S (YT-100S) was built for more stubborn and easily distracted dogs by offering its static stimulations in a higher range than the YT-100. With 100 yards of range this system is ideal for training around the house yard or park - any situation where your dog is within 100 yards of you. It's a compact and discrete system packed with premium features at a value price. Built with DryTekA(R) technology the YT-100S is waterproof and submersible to 25 feet. It's rechargeable and offers three stimulation types: tone vibration and eight levels of static stimulation. Each stimulation type has a dedicated button allowing you to easily deliver the stimulation that best fits the situation and your dog's temperament. This intuitive design makes operating the remote a breeze so you can focus on what's important: your dog. SPECIAL FEATURES Designed for high-drive more stubborn dogs RANGE Up to 100 yards STIMULATION RANGES 8 levels of static stimulation Option to train with vibration and tone EXPANDABLE SYSTEM One-dog training only WATERPROOF Waterproof and submersible to 25 feet using DryTekA(R) technology DOG SIZE For dogs 8 pounds or larger with neck sizes 5" - 22" BATTERIES Rechargeable lithium-ion batteries Charge in 2 hours last 50-70 hours per charge Remote Transmitter charges in 2 hours lasts 20-25 hours per charge LOW BATTERY INDICATOR Yes CONTENTS Remote Transmitter Receiver on 3/4" Collar Strap Charge Cable Standard Contact Points Long Contact Points Lanyard Test Light Tool Operating Guide Basic Training Manual PRODUCT DIMENSIONS Receiver without strap - 2.60"L X 1.30"W 1.23"D Remote Transmitter with antenna - 5.30"L X 1.70"W X 1.00" D