Description This item is a set of key locator system, which has four receivers for different purposes. It helps you quickly search of lost keys, remote controls, wallet, glasses and other lost objects. It can and also glue and easy to carry. Features - Intelligent design has certain adornment effect. - Works through walls and floors, up to 40 meters. - High-gloss surface on the and silver frame. - Can and also glue and easy to carry. - A transmitter, correlate four receivers with four large buttons on the transmitter. - Suitable for personal use, family use, gift and promotional purposes, etc. Specifications - Size (transmitter): 105 * * 13mm. - Size (receiver): 50 * 36 * 11mm. - Battery (transmitter): AAA, 1.5V * 2 pieces. - Battery (receiver): CR2032, 3V (1x4). - Sound: 75-80Db. - Transmission range 30-40 meters. - Frequency: 433.92MHz. - Housing material: ABS. Intelligent design has certain adornment effect |Works through walls and floors, up to 40 meters |High-gloss surface on the and silver frame |Can and also glue and easy to carry |A transmitter, correlate four receivers with four large buttons on the transmitter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin