4.2 Wireless anti-loss/key finder device made of bamboo casing. This device is designed to help you find your lost belongings by attaching it to your bag, keys, or luggage. It requires a free app available for both iOS and Android. Additionally, it offers remote shutter/selfie button and phone finder functions. It comes with a 1 CR2032 battery included. The range distance is up to 35m outside and 15m inside. Please note that as bamboo is a natural product, there may be slight variations in color and size per item, which can affect the final decoration outcome. This product is also customizable to fit your personal style.