Locate the stuff where you left with this brilliant 5-Channel Sound Alarm !#!amp!*! LED Waterdrop Anti-lost Finder with Receiver !#!amp!*! Transmitter! It is a cool and convenient little device that helps you find those misplacing stuff like your phone or keys. This device consists of finder receiver and transmitter. Even better￡? one receiver can connect to up to five transmitters at the same time. It is easy to use; simply attach the transmitter to your essential and press the button on the receiver to find it. When something is located￡? the transmitter will give out sound alarm and flashing light to help you find it. Ultra-slim￡? mini size will perfectly fit into any place. So￡? what are you waiting for? Click and get one now!                                    Features             Help you find those misplacing stuff like your phone or keys<br> Consist of finder receiver and transmitter<br> One receiver can connect to up to five transmitters at the same time<br> Up to 30 meters of effective distance￡? easy to use <br> Simply attach the transmitter to your essential and press the button on the receiver to find it<br> The transmitter will give out sound alarm and flashing light when something is located<br> Strong anti-interference capability<br> Super low power consumption￡? remain dormant when not used<br> Ultra-slim￡? mini size will perfectly fit into any place   <br>                                                            Specifications             Material     ABS    <br> Color     White    <br> Operating Distance     20-30M    <br> Battery Type     CR2032 Button Cell    <br> Voltage     3V    <br> Battery Capacity     600mAh    <br> Standby Time     Six Months    <br> Dimensions     (4.92 x 4.72 x 0.98)" / (12.5 x 12 x 2.5)cm (L x W x H)    <br> Weight     3.99oz / 113g       <br>                                                             Package Includes            1 x Transmitter5 x Receivers