Feature: Specification: Features: 【Wireless Item Locator】This key finder can help you to find the lost keys, remotes, purse, eyeglass, cane and other easily lost items quickly. With just one press on the color-coded button,the beep sound and flashes will lead you to find the lost items. 【Advanced Radio Frequency】The wireless item tracker is applied with advanced radio frequency technology which can penetrate through walls, doors, cushions and furniture to help search for your lost item up to 100ft long distance. 【Easy Operation】No phone and app needed, just press the button on the RF item locator, the receivers will lead you to your lost things 30 meters away, and the 4 receivers can work at the same time to find out your items. 【Loud 80db Beep & LED Flashlight】Simply press the corresponding color-coded buttons, beeping sound from receiver will help you find lost car keys and the built-in LED flashlight is helpful to locate items lost in darkness. 【Great Gift】The easy operation is especially suitable for seniors and forgetful people. Great gift for family member and friends. Specifications: Materials: ABS Frequency：433.92MHz Working Range：15-30 meters Sound：75-80dB Battery Life：6 Months Transmitter Dimensions: 84 * 108 * 35mm/ 3.3 * 4.25 * 1.37in Transmitter Weight: 66g/ 2.3oz Receiver Dimensions: 48 * 32 * 6.7mm/ 1.8 * 1.25 * 0.26in Receiver Weight: 5g/ 0.17oz Packing List: 1 * Transmitter 4 * Receivers 4 * CR2032 Batteries for Receivers 4 * Key Rings 4 * Adhesive Tapes 1 * Opening Tool 1 * Manual Package List: 1 * Transmitter 4 * Receivers 4 * CR2032 Batteries for Receivers 4 * Key Rings 4 * Adhesive Tapes 1 * Opening Tool 1 * Manual