Martin System Micro B is one of the best-selling electronic training collars with a range of up to 1000m. With sound, pulse and vibration functions. Simple magnet trigger and the possibility of expanding the kit for up to 2 dogs. The K9 is a Bluetooth connected transmitter and features a colour backlit display. It has a range of up to 1000 metres with the Chameleon®III B controller. This remote has 18 stimulation levels and 8 program modes that can be customized through our free Doggify app. By default, the K9 allows you to train two dogs on one transmitter (however, this setting can be changed in the Doggify app). You have 2 stimulation buttons for each dog, giving you the ability to work with two different frequencies for one dog if needed. The transmitter automatically remembers the last selected stimulation level for each button. The patented Finger Kick system is paired with your Martin System®. and allows you to wirelessly trigger the remote's stimulation button without using your hands.