RELATED: The Best Wearable Tech To Help You Keep Track Of And Play With Your Kids About the size of a Gatorade cap, the one-ounce Ping tracker uses Bluetooth, cellular, and GPS to keep tabs on whatever its attached to. Better still, you only need to plug its Li-Ion battery in once every three months (you’ll know when it’s levels are dwindling thanks to the indicator on the accompanying app). Several Ping trackers can be used at once and you can view everybody you’re tracking (kid, dog, business partner) in one spot. Simply tap each icon and Ping displays their location on the map, as well as directions so you can find and confront them about the embezzling. Ping also boasts two kid-friendly features: A check-in button and a distress signal. Hit once, the button instantly lets you know if your kid is at the park, over at a friend’s house, or onboard an outbound freighter headed to Guatemala. If he or she holds the button down, it sends a distress signal so help can be notified. Oh, and it’s waterproof up to 30 feet, so you’re not out $100 when it inevitably goes in the pool. Ping runs about $100 (not the cheapest, considering how small/lose-able it is) and requires a cellular data plan. They throw in the first year for free, but it’ll run you about $3 per month per device after that. Their Indiegogo’s fully funded, though, so feel free to pre-order for July. Buy Now $99
