WOSPORTS wireless key finder is designed for those who are forgetful. It comes with 1 transmitter and 6 receivers.It helps to locate items you often lose. Attach the receiver to your keys, a remote, a purse, glasses, canes, umbrella etc. Following the audio beep sound attached to the receiver will help locate your lost items with a range of about 30 meters away. The receivers has red LED light ,which will lead you to your lost item in the dark.Key finders specifications:Distance: 85-100 FeetSound: 75-85dbFrequency: 433.92MHzMaterial: ABSStandby time: 9 monthsBattery: CR2032*6 for receiver (included) AAA 1.5V*2 for transmitter (not included)Each Package Includes:? 1x Whew Keys Locator Transmitter ? 6x Receivers? 6x CR2032 batteries? 6x Key Rings? 6x Adhesive Stickers ? 1x Sticking Pad for holding the receiver on the table? 1x User ManualKey finders tips:?When putting the battery in, please note the side with ?CR2032? writing should face out. ?When the receiver doesn?t respond, please first check whether the red LED on the transmitter flashes after you hit the button, if Yes, please replace the receiver?s battery, otherwise replace the transmitter?s battery. ?The key tracker device is NOT waterproof, be aware of water or rain.?Any issues with WOSPORTS key finder,please feel free to ask us,we will try our best to give you a great service!!!