Advantages of our products: Wireless control up to 1650 feet of remote range. 5 adjustable training modes, safe and effective. Beep, emergency flashlight, 00-99 level vibration, 00-99 level shock and security keypad lock mode. Long Battery Life: 2 in 1 charging port, can charge the remote control and the receiver at the same time, charging only needs 2-3 hours, can standby for a long time, persistent work. Waterproof dog collar and screen Backlit LCD: The receiver of this training collar is made of IPX7 water resistant material, no need to remove the collar to swim. The remote has an LED-backlit display, which can be used at night. Security keypad lock: The security keypad lock prevents misuse of the remote control. < p>For dogs of all sizes: The adjustable nylon collar fits neck sizes from 8 to 27.5 inches for dogs weighing approximately 6 to 160 pounds.