You can choose channel 1 or channel 2 to pair the remote and device. The system will pair 2 receivers at the same time. If you can not pair the device successfully. It maybe caused by the signal interference. Please change to another place to try or contact with your seller. Feature: ※ Shock collar with three modes: Beep, vibrate, and electric shock. ※ Shock collar mode level: Default mode of beep sound, 1-100 adjustable level mode of vibration and electric shock. ※ Wireless remote range: The dog training collars can be used flexibly within 1,000 feet without worrying about your dog not following command. ※ Highly effective waterproof:The waterproof training collar has super IP67 waterproof effect. ※ Night vision effectiveness: The dog tarining collar can be used in low light and night conditions. ※ High capacity battery: Both dog shock collar with remote control and receiver can be charged at the same time, which can be used for 10 days. ※ Collar length: The training collar 6in-26in for small, medium and large dogs. Package Included: ☆ 1* Dog training collar remote control ☆ 1* Dog collar receiver ☆ 1* Waterproof training collar TUP belt ☆ 2* Screw nuts (one long and one short) ☆ 2* Silicon rubber case(one long and one short) ☆ 1* Charger ☆ 1* USB charging cable ☆ 1* Test light ☆ 1* Lanyard ☆ 1* Manual book CAUTION! Please read and follow the instructions in manual. Proper fitting of the collar is important. A collar worn for too long or made too tight on the pet’s neck may cause skin damage. These collars can cause pressure necrosis if used incorrectly and is often misidentified as burns.</br
- 【PROFESSIONAL REMOTE PET TRAINING】:1000 feet wireless remote control dog training collar, can help train your dog to prevent your dog from running about, bark or other disobedient act. You can bring it wherever you camp, walk or hiking.
- 【3 ADJUSTABLE TRAINING MODES】:The shock collar has three different modes(Beeps, vibration and shock) and level 1-100 adjustable functions.You can choose the suitable mode and level freely to help correct your dog’s Inappropriate behavior.
- 【WATERPROOF & LONG BATTERY LIFE】: Built-in high capacity rechargeable battery, This training collar can keep using 10 days continuously . Tested by researchers, our waterproof training collar is 100% waterproof, so your dog can swim or play in the water freely with the shock collar.
- 【LIGHT AND MEMORY FUNCTION】:Built-in LED backlight, perfect for evening training, find your dog easily in the dark.The memory function of this dog training collar ensures that prior stimulation and vibration levels are recorded on the device so that you don’t need adjust the device every time.
- 【WARRANTY SERVICE】:To provide you with best shopping experience, we offer a 30-day no reason refund and 12 month free warranty. If you have any questions about our dog training shock collar please contact us at any time. We promise we will offer every one best service.