The Garmin Alpha 100 GPS small dog tracking system is finally here. The new T5 Mini collar is designed for most small working dogs and hunting dogs. This mini collar is about the same size as the Garmin Pro PT10 collar. With the latest Garmin technology, this system helps you achieve optimum performance from working dogs and small hunting dogs. This small rechargeable GPS dog tracker kit is waterproof and has range up to 7km. It delivers exact position of the dog collar as often as every 2.5 seconds.