Infrared sensor speaker XD-K10

Features：The upgraded version comes with a USB interface, the voice can be flexibly modified, and the sound is loud and bright. 1. It is suitable for use in construction sites, schools, stations, subways, shopping malls and other places. 2. It is used to issue safety warnings to the public. 3. With fixing screw holes, easy to install. 4. The structure is firm. 5. Humanized function, the voice segment can be modified automatically.