ULIVE Wireless Key Finder 5 in 1 Long Range Object Locator with 1 Transmitter and 5 Receivers with Flash Light Intelligent finder with 1 transmitter and 5 colored receivers, detection range up to 98 feet. Loud and instant beep, one click on the button to find the missing items: key, wallet, remote, mobile phones, or even pets. Small size and sturdy built. Integrated flash light helps to find objects in the dark. Delivered with complete accessories including batteries. Loudness of sound: 40dB (attention: more explanation about loudness can be found at the end of product description).