Wireless anti-loss/ keyfinder device made in durable ABS material.Requires a free app available in both iOS and Android. Attach the deviceto your bag, keys or luggage and whenever your belongings are lost thedevice will help you to find them. The additional features availablewith this item are remote shutter/selfie button and phone finderfunction. 1 CR2032 battery included. Range distance 35m outside/15minside.