The Dogtra Element 300M dog collar is the perfect tool to help you train your furry friend. With adjustable shock levels and a waterproof design, this collar is perfect for any dog, no matter what size or breed. The internal antenna system ensures you can control your dog from up to 1/2 mile away. The rechargeable battery will keep the collar running for days, even on the longest training sessions. The collar from Dogtra is perfect for anyone looking to train their dog using static/shock or vibration.