They also give you 3 types of stimulation – the Nick button gives a quick burst that lasts only a fraction of a second, the Constant button gives a steady stimulation for as long as the button is held (up to 8 seconds), and the Pager button vibrates the collar giving a non-electrical type correction for finesse training, or quick reminders. Each unit features rechargeable batteries, waterproof receiver, waterproof transmitter, extra contact points and charger. Model 300M is recommended for pets and medium breed sporting dogs with a range of up to 400 yards, and has a one-year warranty.
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