Outdoor play just got an upgrade! KidiGo® NexTag™ is WAY more than just tag—it's a high-tech spin on 20 different backyard games including capture the flag, freeze tag and hide-and-seek. There's no internet needed to play—all you need are the four included electronic units and adjustable arm bands! A friendly voice explains the quick and easy-to-learn rules so kids can start playing fast. No referee required—the game lets you know who's it and who won. There's one- and two-player games or the WHOLE family can get in on the fun. Go from four to eight players by combining two KidiGo® NexTag™ systems (sold separately). Play indoors or out with a 120-foot range between units. All you have to do is press the big button and tag, you're it! Intended for ages 5+ years. Requires 8 AA batteries, 2 per unit. Batteries included only in red unit for demo purposes. New batteries recommended for regular use.