【6 Color-Coded Receivers】: Backup Remote Control included, and Each Remote control can pair to all the 6 receivers. Just hook your item that may easily lose to any receiver, then you can accurately track it through the beep sound once press the corresponding color button of Remote Control, helping you out of cum trifles in daily and work life! 【2 Transmitters Included】: To think the most for you, we provide two transmitters for more convenient use. No matter in office, living room, bedroom, car or elsewhere, any of the transmitter can lead you successfully to the lost items. Better Still, Esky Key Finder won't get you uneasy even if you lost one of them! 【Sound and Light Alert】: Still worry about the sound and working range that limit its performance? Absolutely unnecessary! The Wireless Item Locator works great with 80dB loud beep sound (voice is emitted from the side, louder than ever) and 30m/100ft working range in open area. Just rest yourself assured since the sound signals can even penetrate walls, floors, cushions, leathers and more, and the LED light allows you better visibility when tracking in the dark.