1000 feet long control distance, open scene free training PROFESSIONAL REMOTE CONTROL RANGE: Adopting high-frequency radio technology, the effective control distance between the remote control and the collar can reach up to 1000 ft (about 305 metres), far more than the ordinary training collar (usually within 500 ft). Suitable for outdoor grass, beach, mountains and other open environments, even if the dog runs far away, it can still be controlled in real time, especially suitable for hunting dogs, working dogs and other breeds with high activity. Multi-channel anti-interference: support 16 independent channel switching, avoid signal interference when training multiple dogs at the same time to meet the needs of professional dog trainers or multi-dog families. IPX7 deep waterproof, fearless challenge in all scenes. Waterproof performance: The main body of the collar has passed IPX7 waterproof certification, which can be submerged in 1 metre deep water for 30 minutes without damage, and can be used normally during rainy day training, poolside interaction or dog water play, without worrying about water failure. Durable Material: The collar strap is made of military-grade nylon, which is bite-resistant and wear-resistant, and can withstand 100kg pulling force, suitable for medium and large-sized dogs for strenuous exercise; The main body shell is made of ABS+PC alloy, which is resistant to falls and impacts, and can still work normally when dropped from a height of 2 metres. Humanised design, taking into account the safety and comfort Automatic protection mechanism: When the static mode is triggered continuously, the system will be forced to pause for 2 minutes after 10 seconds to avoid over-stimulation of the dog; Built-in anti-touch sensor on the collar strap prevents the stimulation function from being triggered when it is not worn correctly, preventing misuse. Comfortable to wear: The width of the collar belt is adjustable (15-25cm), suitable for dogs with neck circumference of 30-60cm, and the inner lining is made of breathable silicone pads, which is not sweaty and does not rub the skin in summer; The weight of the main body is only 85g, which is no burden for small dogs to wear and no pressure for long time training.