If you're skipping the resort this winter and sticking strictly to the backcountry, you're going to be gaining a lot of elevation throughout the season. The Micro BT Button is Pieps' lightest and smallest beacon with a manual switch from send to search, helping you minimize your load on all those uphill trips. But don't worry, the BT Button still boasts a generous display and the same range and battery life as the DSP Sport you've been hauling around, with three receiving antennas and additional functions like a proximity sensor, vibration motor, and Bluetooth-compatibility.