【PRESS AND BEEP SAVES THE APP】 Jegoteer Key Finders that make noise work via radiofrequency and need no APP. Simply press the coded button on the transmitter, and the corresponding receiver will beep and flash all at once, helping you to find the item easily you attach it to. Button cells of Jegoteer TV remote finder last for 6-10 months on daily use basis while phone for the key finder locator App dies every now and then. 【LARGE KEY DESIGN, SLIM TAGS】 The large key design makes operating the key finder like a breeze. Never worry about your award fingers and bad eyesight. Contrarily, the tags are slim and light, at 1.8” x 1.2” x 0.24” and 0.14oz(4g), very convenient for home and outdoor use. 【LOUD BEEPER, 120FT REMOTE DISTANCE】 With as loud as 85dB beeping volume, even people with poor hearing are able to locate the lost items easily. RF wave of the tracking device for keys can penetrate through walls, floors, cushions, etc., helping you track down items as far as 120 feet away (tested in open area). The distance being well able to cover the whole area of your apartment, it's very helpful as a lost keys tracker, or tracker for wallets, phones, glasses and hiding pets.