This dog training collar comes with a transmitter and a wireless collar receiver. The transmitter can send a remote signal to the dog’s dollar that will beep, vibrate or shock accordingly within a range of 820ft. Whether your dog is chewing furniture, excessively barking, or pulling the leash while you’re out on a walk, this transmitter and collar receiver will give you the ability to teach your dog right from wrong with the simple press of a button. 3 Training Modes & 2 Channels: This dog training collar features beep, vibration, and shock modes. With 0-99 level adjustable intensity, you can adjust the stimulation level (only for vibration and shock modes) whenever needed. The transmitter comes with 2 channels to support training 2 dogs simultaneously. Indoor& Outdoor Usage: With a remote range of 820ft, you can simply press the button when your dog begins to chew the furniture, excessively bark or pull the leash. It can be handy if you’re teaching your dog off-leash commands in the park, backyard, or anywhere else. Adjustable Collar & Waterproof Receiver: With an adjustable neck circumference of 9.8-26in, it’s suitable for small, medium and large dogs. IPX7 waterproof receiver allows you to train your dog at the seaside. Make sure that the charging port is well-sealed before the dog enters water. Long Standby& Backlit Display: The 2-in-1 charging cable supports two devices charging simultaneously. After being fully charged for about 2hrs, the standby time is up to 60 days. Equipped with a backlit display, you can also train your dog at night. Keypad Lock: You can lock the transmitter when not in use to prevent accidental shock. Brand: PetLuv Product Type: Dog Training Collar Color: Black Material: ABS Remote Transmission Distance: 250m/820ft Adjustable Collar Circumference: 25-66cm/9.8-26in Receiver/Transmitter Charging Time: 2-3Hrs Receiver/Transmitter Standby Time: 60Days Shock/Vibration Intensity Level: 0-99 Adjustable Waterproof Rate: IPX7 Collar Length: 70cm/27.6in Transmitter Size: 9.3x5x1.7cm/3.66x2x0.7in Transmitter Weight: 54g/0.12lbs Receiver Size: 7.2x3.8x3.2cm/2.83x1.5x1.26in Receiver Weight: 51g/0.11lbs Charging Cable Length: 61cm/24in Package Size: 20.5x17x5.5cm/8.07x6.69x2.17in Package Weight: 264g/0.58lbs 1 x Test-light Bulb 1 x Collar Receiver 1 x Remote Transmitter 1 x USB Cable 1 x Collar 4 x Contact Points 4 x Conductive Silicone Jackets 1 x User Manual 1 x Lanyard