The Delta Canine remote provides convenient 1-handed, no-look training. This tactile remote control looks much like a key fob — and works just as quickly — so you are ready to react in any situation. The 3 buttons control stimulation, tone and vibration on the dog device (sold separately). Use it from up to 10 meters away, and slip it easily into a pocket for discreet training wherever needed. Set up your remote with the Garmin Canine™ app , and review your training sessions. The replaceable CR2032 battery lasts up to 1 year and features an automatic sleep mode to save battery life. Green LED light indicates when a button has been pressed.