Features & details * 【4 Humanized, Effective, Safe Training Modes】Our dog shock collar features 4 humane training modes: beep(1-8 levels), vibration(1-16 levels), safe shock(1-99 levels) and Shock Boost(10% higher). Enables you to set the right stimulation levels for your pet, which is helpful in deterring dogs from undesirable habits. * 【3300FT Range & 2 Channel】The dog training collar covers up to 3300FT allowing the dog to roam farther, making it easy to train your dog indoors or outdoors. With dual-channel, one remote supports 2 receiver collars, and you can train 2 dogs at the same time! Besides, it has a memory function without resetting it. * 【Fits for All Sizes of Dogs】Jugbow training collar for dogs sizes dog with neck sizes from 7.8 - 24.4 inches and weights from 10 - 120 lbs. Dog training collars are suitable for large dogs, medium dogs, and small dogs. This collar strap is made of soft nylon to protect your dog comfortably. Meanwhile, the lightweight collar design reduces your dog's burden. * 【IPX7 Waterproof Collar & Security Lock】The electric dog collar can be used in any weather and any condition thanks to the IPX7 waterproof design of the receiver. Instant response security on/off switch button allows you to carry it without any fear of accidental touch. * 【Incredible Battery Life & Quick Charging】 Charging via USB, 2-in-1 fast charging only 2 hours to be fully charged. This dog training collar with remote provides battery life that lasts for a long time, the e collar can last up to 35 days of standby time and the remote 45 days!