The DCH-Z510 mydlink ™ Z-Wave ™ Siren is a wireless siren, based on Z-Wave ™ technology. It is the Z-Wave™ plus product, it supports the security, OTA... Those newest features of the Z-Wave™ technology. Z-Wave™ is a wireless communication protocol designed for home automation, specifically to remotely control applications in residential and light commercial environments. The technology uses a low-power RF radio embedded or retrofitted into home lectronics devices and systems, such as lighting, home access control, entertainment systems and household appliances.