Garmin Alpha TT10 Dog Training Collar - $269.88

Additional Alpha TT10 collars allow you to track up to 15 dogs with the Alpha 100 Handheld unit (sold separately). The top-mounted GPS antenna pinpoints your dogs location from up to nine miles away. Rugged collars are waterproof to 30 meters. Rechargeable lithium-ion battery provides 15-40 hours of operation. Braided-steel VHF antenna. Replaceable collar strap. Remote-activated LED beacons and tone commands. Physical USB interface. Long and short contact points plus flush-mounted plugs. Type: Dog Tracking Systems. - $269.88