Innotek's Gun Dog Trainer combines a remote trainer and audible beeper collar together in one compact unit. The compact, eight-button transmitter is suitable for hanging from a lanyard where it is easily accessible. Four stimulation buttons provide low, medium, medium-high and high continuous stimulation, and four beeper-control buttons providing instant selection of three beeper modes (Normal, Grouse and Silent) plus an Instant Locate button. With continuous stimulation, the stimulation continues as long as a transmitter button is pressed - up to a maximum of 10 seconds. The stimulation shuts off automatically after the button (key) has been pressed for 10 seconds. At low and medium levels, continuous stimulation can be used for teaching and reinforcing commands. At medium, medium high, and high levels it can be used for correcting unwanted behavior such as livestock, deer, or car chasing. Also, the duration of stimulation can be varied from a fraction of a second (by just tapping the button) to several seconds (by holding the button down) as appropriate. All functions are operable from up to 500 yards. The collar features Innotek's redesigned, low-profile, weatherproof speaker on an orange collar strap with a roller buckle. The compact, wateproof receiver operates on a long-life, 3-volt lithium battery. The TT-100A Gun Dog Track N Train will NOT operate Bird Launchers, Auto-Backers, or a second collar/ receiver. Click here for the CS1600 series collars. Which will operate an additional collar, and multiple Innotek Bird Launchers and Auto-Backers. 30-day money-back guarantee and a 1 year warranty