Bousnic Dog Training Collar 2 Dogs 2018 Upgraded 1000ft Remote Rechargeable Waterproof Electric Shock Collar with Beep Vibration Shock for Small Medium Large Dogs Safe, Effective, Humane Training Modes  These Bousnic shock collar for dogs offer customized Static Shock (1-16) and Vibration(1-8) levels, as well as a standard Tone mode. These variable stimulations can be tailored to your dogs temperament, while the adjustable nylon collar fits 0-27 in length. Indoor & Outdoor Versatility  The remote for this dog training collar can reach up to 1,000, allowing you to train dogs in the backyard, the park, or anywhere else. The remote also features a dual channel to support training 2 dogs simultaneously. Premium, Ergonomic Design  The easy-access button sizes and simpler format are easier to operate for pet owners and help dogs learn commands more effectively. A premium training collar for expert trainers and new pet owners, the conductive silicone prongs are also safe on coats and skin. Rechargeable, Waterproof Durability  Rated IP67 waterproof, this collar receiver works doesnt need to be taken off when your dog goes for a swim, chases toys around a pool, or plays in the rain. Each dog shock collar boasts Lithium-Polymer batteries that charge in 2-3 hours and last 15-20 days. 1-Year Worry-free Warranty  Every Bousnic Dog Training Collar offers 1 YEARS Replacement or Refund Warranty. What you get: 2 x receiver collar; 1 x remote transmitter; 1 x charging adapter; 1 x [2 in 1] charging cable; 1 x static shock test light; 4 pairs metal prongs, 4 pairs rubber conductive anti-injury prongs; 1 x user's Manual.