BEEPER MODES: The 2700T&B receiver has a unique single-body receiver/beeper horn to eliminate the bulkiness and enhance the durability. There are 3 beeper modes: Locate, Run/Point, and Point-Only, which gives you the ability to keep track of your dog. The beeper volume comes in 3 adjustable sound levels so you can find the right volume for your hunting needs. 1-MILE RANGE: The range of this training e-collar is perfect for any and all simple commands for your dog. With a range of 1 mile, this e-collar is a great choice for hunters looking to train their dogs in the field. PRECISE CONTROL: With 127 stimulation levels, you’ll have no problem finding the perfect level for your dog with the gradual and precise stimulation control. The levels are bright and easy to read with the LCD screen and can be adjusted precisely at any time with the Rheostat Dial. STIMULATIONS: This e-collar several different kinds of stimulations. It has a Nick stimulation (quick ½-second), a Constant stimulation, (up to 12 seconds), and an HPP (High-Performance Pager). It can be used alone or in combination with the stimulation and offers a clear vibration to alert dogs while training. FULLY WATERPROOF SYSTEM: The 2700T&B transmitter and receiver are both fully waterproof. Whether you’re out near a body of water or stuck out in the rain, you won’t have to worry about it malfunctioning and can tackle any environment.