The Garmin Alpha 300i handheld lets you track and train your dogs in the field with a new crisp 3. 5" touchscreen, inReach® satellite communication and a user-friendly 6-button design. Display features up to a 2. 5-second update rate. View maps and track your dogs on a clear and bright 3. 5" display. Control touchscreen even with gloves on. Keep in touch and exchange text messages with friends and family where cell service doesn't exist. View up-to-date satellite imagery in the field. Other navigation features include multiple global navigation satellite systems and 3-axis compass. Quick USB charging with included cable. Monitor up to 20 dogs with your compatible dog collars from up to 9 miles away. Also includes Pro View compass, Topoactive maps and barometric alitmeter. You can also track your location and share it with those at home or out in the field. Built in inReach satellite communication. In case of an emergency, use inReach satellite technology to send an interactive SOS message. Messages, alerts and tracking transferred via the Iridium satellite network, subscription required. Select from 18 levels of momentary and continuous stimulation. Download satellite imagery via Wi-Fi to see terrain features to help you navigate. Imported. Garmin Alpha 300i GPS Dog Tracker Black/Orange