The Alpha 300 handheld sporting dog tracker from Garmin features a 3.5” touchscreen display, channel view to avoid interference, the ability to monitor up to 20 dogs up to 9 miles, and 18 levels of momentary and continuous stimulation, audible tone or vibration commands. You can see distance, speed and time afield and download satellite imagery via Wi-Fi to the device. You can pair to select T and TT series collars, and the watch offers multi-GNSS support. Offers up to 55 hours of battery life.