This lifesaver fits onto the back of a bike helmet, and if you crash, it launches an app on your phone to ping your coordinates to an emergency contact. “A friend and I got lost on a recent mountain bike trip and had to ride by moonlight over rocky, technical terrain. There’s security in knowing that, should the worst happen, there’s a device that can notify someone,” says Seamus Mullen, chef-owner of Tertulia in New York. [$119; icedot.org]
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