How to use: There are 8 buttons of different colors on the remote control, corresponding to 8 receivers of different colors. Hang the item you want to find on the receiver, press the button on the remote control, and the receiver of the corresponding color will make a beeping sound. Find your item according to the sound. The indoor distance is 10-15 meters, and the outdoor distance can reach 40 meters. The sound can pass through the wall, and there is no need to download the APP software, which is convenient for us to find small items and in the office. Even the elderly can operate it easily. Material: Plastic + Cloth colour: As shown Package Contents: 1 x Wireless Smart Tracker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Wireless Smart Tracker 8 Receivers Tracker Pet Child Elderly Tracker Car Key Finder Locator Anti-lost Device