*Features*: * 3 Training Functions with 0-9 Intensity Levels *: Our dog receive collar has 3 extremely efficient and safe training modes(beep,vibration and static shock modes) for you to cultivate a dog basic obedience commands and correct your dog’s inappropriate behaviors. The transmitter also features 4 channels to support training 4 dogs simultaneously. In case of dog’s accidently injury caused by improper intensity,the receiver collar delivers 0-9 beep,vibration and static shock levels(0 level means off) for you to adjust to fit your pet's personality. Please start from the lowest level for better accommodation. * Stable Wireless Dog Fence Mode *: Adopt advanced 2.4G frequency technology that consistently provides a more stable and accurate signal transmission from 50ft to 990ft than others. No complicatedly manual pairing operation, they will be automatically paired after power on, and one transmitter can connect with unlimited quantity of receiver collars. When your dog is out of range, the collar will trigger 5S sound, 5S vibration and 6S shock, after 2 cycles of this, we have “didi” sound, emit until they return to the setting distance. After 5min of electric shock, it will enter to standby mode. * Rechargeable & Long Standby Time *: Built-in 2500mAh rechargeable battery of transmitter achieves 3-5days working after about 3-4hours fully charged. And 500mAh rechargeable collar enables up to 15days standby time(depends on using frequency) after about 1-2hours charging. Come with 2-in-1 type-c charging cable and adapter, can be conveniently charged via PC, phone charger, laptop, or power bank. * IPX6 Waterproof Collar Receiver *: With well-sealed silicone, the training collar emits IPX6 outstanding waterproof performance, offering your pets maximum flexibility during outdoor activities. Make sure that the charging port is well-sealed before the dog runs into water. Reflected strips on the collar make people see your dogs clearly even at night which effectively