The Dogtra 2700T&B e-collar is designed for upland hunting, giving you more control and locate ability on long ranging bird dogs. 1-mile range. The built-in receiver/beeper horn gives you the ability to track your dog with three beeper modes: Point only, Run/Point, and Locate. Equipped with the new accelerometer sensor, the 2700T&B gives you the enhanced ability to accurately track, detect, and monitor your dog. The system comes with 127 Nick/Constant stimulation levels for accurate control and the new HPP (High Performance Pager) vibration system and Enhanced Contact Points make this system a winner. The 2700T&B comes with a unique single-body design where the downward-facing beeper horn is built into the receiver. This eliminates bulkiness and reduces the risk of catching on objects while in the field. Also available in a 2-dog system (see 2702T&B).