Great for training in the yard, field, or for hunting with close-working dogs, the SportDOG Brand® FieldTrainer® 425 lets you quickly switch between stimulation, vibration and tone. The collar receiver has a range of up to 500 yards, and the remote transmitter allows you to add up to 3 dogs. The FieldTrainer 425 is compatible with the Uplandhunter® accessory beeper SD-BEEP (sold separately). DRYTEK™ waterproof and submersible up to 25'. Includes a lanyard for hands-free carrying.