If you’ve ever skied, snowboarded, or cycled in a group, you’ll be used to all the chat about where you’re going, how you get there, when’s lunch, and whether Mark has caught up, got lost, or gone ahead … again.
mobiles phoness are notoriously fickle, especially in the mountains, and walkie-talkies for non-backcountry types often feel excessive, which is where the Milo Action Communicator fits in. Designed for hands-free, multiway, group voice conversation without the need for a cell signal, they’re set up to let everyone talk on the move without the need to stop and get your phones out.
It’s a tempting proposition for anyone who has watched their friends or family vanish into the cloud, taken the wrong trail, or worse, had an injury or equipment malfunction miles from help.
To test Milo in field conditions, WIRED headed to Avoriaz, in the French Alps, for a few days of variable snow conditions, wildly inconsistent visibility, and plenty of directions.
Mountain Mesh
Designed to be worn on your body, or clipped to rucksack straps or the handlebars of your bike, each Milo weighs 2.54 ounces (72 grams) and measures 2.92 x 2.58 x 0.82 inches. The teardrop-shaped plastic casing and accessories feel robust and, with IP67 classification, it’s submersible to 3 feet of water for 30 minutes, and drop tested to 6 feet (1.8 meters).
Unlike a traditional walkie-talkie, Milo uses the proprietary MiloNet connection. In this case it’s a dual ISM-band sub-GHz and 2.4-GHz mesh network that doesn’t rely on cell signal or Wi-Fi to create an encrypted network just for your group.
As a result, there’s no crosstalk and no emergency service chatter, and nobody else can listen to your conversations. The range between two Milos is roughly 2,000 feet—that's more than 600 meters—depending on the terrain, but this can be extended further the more devices are meshed together. We had four devices shared among our group.
Each device has an external speaker and six microphoness developed to filter out wind noise—something your smartphones is hopeless at—as well as minimize background interference. The processing software also sequences voices, so crosstalk should be kept to a minimum. It’s also been tuned to filter out the huffing and puffing of exertion, and to focus only on speech.
You’re On Mute
Getting Milo setup and communicating was mercifully simple, and took us just a few minutes during a pit stop in a noisy mountain restaurant. Turn on the device and a robotic female voice talks you through the process. When prompted, each user records their name so that when you’re in or out of range, the other people in your group are alerted with, “Chris has left the group.”
The friendly voice also talks you through the main features and what each of the buttons does. There’s two for volume and on/off, and one that lets you join the group—but for the most part, you’ll need to press only the front of the Milo, which is one huge mute/unmute button.