Features: Wireless key finder: 1 transmitter and 4 receivers for locating any items such as keys, wallet, TV remote control, purse, glasses, everything you need.<br> Strong signal design: 30-40m (98-131ft) transmission range, radio frequency can penetrate walls, floors, etc. so you can easily find your items.<br> Easy to use: With just one press of the color-coded button, a loud beep and flashes will lead you to find lost items.<br> It has LED flashlight on transmitter, very convenient to find lost key and other items even in dark environment.<br> The transmitter is equipped with a base, so it can be placed on a tea table, TV cabinet, bed, computer desk or shelf.<br> Please allow slight dimension error due to manual measurement. Material: ABS shell<br> Color: as shown in the pictures<br> Frequency: 433,92 MHz<br> Voice: 75-80Db<br> Transmission range: 3040 meters<br> List of packages: 1 * Transmitter<br> 4 * receivers<br> 1 * base<br> 4 * double-sided sticker<br> 4 * Round Buckle<br> 1 * Instructions