SportDOG SportHunter 1225X Electronic Collar - The SportDOG Brand SportHunter 1225X is their mid-level e-collar in the long-range, SportHunter family. This SD-1225X model provides up to ¾ mile range for up to 3 dogs (with purchase of Add-A-Dog collars). Designed in the field by hunters and dog trainers just like you, the SD-1225X allows you to communicate with your dog using tone, vibration, or one of the 21 levels of static stimulation. The remote is designed to be operated without having to look at it, needing only a slight movement of the dial and the push of a button to deliver a stimulation. This customizability and ease-of-use ensures your training is consistent, immediate, and tailored to your dog’s unique personality. Waterproof and submersible to 25 feet using DryTek technology Rechargeable lithium-ion batteries charge in 2 hours Transmitter battery lasts 40-60 hours per charge Receiver battery lasts 140-160 hours per charge For dogs 8 pounds or larger with neck sizes 5in - 22in