Nineer Wireless LCD Remote Dog Training E-Collar 300 Meters with Beep, Vibration, Shock Electric BLUE LIGHT SCREEN: Show your each control all the time. 4 MODES: Choose to train your dog: static shock, vibration, beep, light. WATERPROOF RECEIVER: However your dog naughty, do not worry. The design will make it durable. EASY TRAINING: It provides 100 level of Vibration & Static for you to train your dog. And the control range is true 300 meters. MONEY BACK GUARANTEE: Our shock collars for dogs are safe and highly effective. But if for whatever reason you're not totally satisfied with your order, you don't have to pay! Just contact the customer service team and we'll fully refund your purchase.