Product Description Applause! Applause! This key holder is so hi-tech, it's nearly impossible to lose! Just clap your hands to set off its special anti-loss device. A series of beeps will guide you to its location—and your car, house or office keys. Also features a high-powered, long-lasting, super bright mini-microlight that illuminates door and auto keyholes in the dark. Helps you retrieve dropped items and read maps, too. You'll applaud this hi-tech key holder's anti-loss device. You'll never lose your keys again! On/off switch. 2 Lithium button cell batteries (incl.) Product Description Applause! Applause! This key holder is so hi-tech, it's nearly impossible to lose! Just clap your hands to set off its special anti-loss device. A series of beeps will guide you to its location—and your car, house or office keys. Also features a high-powered, long-lasting, super bright mini-microlight that illuminates door and auto keyholes in the dark. Helps you retrieve dropped items and read maps, too. You'll applaud this hi-tech key holder's anti-loss device. You'll never lose your keys again! On/off switch. 2 Lithium button cell batteries (incl.)