[3 Safe Modes Training Collar] Featuring 3 safe modes: Beep, Vibrate and Shock, shock collar enables you to set the right stimulation levels for your pet, which is helpful in deterring dogs from undesirable habits. | [Security Lock & 1600ft Remote] The security keypad lock can significantly prevent accidental pushes while carrying the remote. The remote has a range of up to 1600ft, making it easy to train your dog indoors or outdoors. | [Waterproof Receiver & Comfortable Collar] The IPX7 waterproof collar is convenient for dogs playing around a pool or in the rain freely. The e collar strap length can be adjusted, fitting dogs weighing over 10 pounds with neck measurements ranging from 8 to 24.4 inches! | [Easy to Use & 4 Channel] The large buttons and clear digital screen make it easy to operate the shock collar for large dogs during day or night. Besides, it has memory function for settings and can train up to 4 dogs without resetting it. | [Quick Charging & Long Lasting Battery] After fully recharged within 2 hours by phone adapter and USB outlet of the PC/power bank/car, the dog collar can last up to 35 days of standby time and the remote 45 days. Note: Don't charge with the adapter whose power is greater than 5V1A.