SPECIAL FEATURES Designed for ease-of-use and no look operation Added more levels of static stimulation More levels of stimulation allow for more customized training Upgraded, matte collar strap for Receiver RANGE Up to 500 yards STIMULATION RANGES Up to 21 levels of static stimulation with low/medium ranges Option to train with vibration and tone EXPANDABLE SYSTEM Supports training up to 3 dogs WATERPROOF Waterproof and submersible to 25 feet using DryTek(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 LOW BATTERY INDICATOR Yes CONTENTS Remote Transmitter Receiver on 3/4" Collar Strap Charging Adaptor 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