Description The SportDOG Brand® FieldTrainer® 425X is our smallest and lightest e-collar built for in-the-field training or hunting with close working dogs. Consistency and perfect timing are critical to developing your sporting dog, so the remote is quickly and easily operated without having to look at it - which lets you focus on your dog and not your equipment. With only a slight movement of the dial and the push of a button, you will be able to deliver a tone, vibration, or one of the 21 levels of static stimulation. Use these stimulation types to communicate with up to 3 dogs (with purchase of Add-A-Dog® collars) out to 500 yards with any of the 425 models. 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® technology DOG SIZE: For dogs 8 pounds or larger with neck sizes 5" - 22" BATTERIES: Rechargeable lithium-ion batteriesCharge in 2 hours, last 50-70 hours per charge LOW BATTERY INDICATOR: Yes PRODUCT DIMENSIONS: Receiver without strap - 2.60"L X 1.30"W 1.23"DRemote Transmitter with antenna - 5.30"L X 1.70"W X 1.00" D 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