Garmin Delta Sport XC Dog Training Device with Interchangeable Contact Points, Blue Finish, Rechargeable Li-ion & Trains Up to 3 Dogs within a 3-4 Mile Range Train up to 3 dogs on 1 handheld device with additional Delta XC/Delta Sport XC dog devices. The water-resistant (IPX7), rugged compact dog device features tone, vibration and stimulation modes, and includes long and short interchangeable contact points for all dog breeds and all coat lengths. Package includes 1 compact dog device with a long-lasting rechargeable lithium-ion battery plus a blue 3/4-inch collar strap. Also includes a built-in BarkLimiter (for Delta Sport XC only), charging clip, USB cable, and AC adapter.