ColorPet Remote 4 in 1 LCD Pet Dog Training Shock Collar for 1 Dog Dog shock collar with rechargeable and waterproof receiver. Electric remote dog collar with 330 yards blue backlight screen remote transmitter control electric shock devices with 3 modes: vibration / beep/ light. Provides a professional 100 level vibration with rechargeable LCD digital remote control electric training collar for dog. Blue Backlight LCD screen -shows the stimulation level. Over 3000 different identity codes to prevent conflicts with other e-collars. Adjustable TPU strap, it will work for small, medium and large dogs weighing from 15 to 150 lbs. Best dog trainer equipment.