The Byron Smartwares BY103 Wireless Plug-Through Chime Kit has a 60 metre operating distance. It provides a choice of four melodies. It features self-learning codes and will keep the code even when the batteries run out and are replaced.

Its plug-through feature means that there is no loss of socket. Another mains powered object can to be powered by plugging into the chime's socket. It has a 80-85dB rating, depending on the sound. Compatible with all Byron DB ranges.

The plug-in chime is mains powered.
The push requires 1 x CR2032 battery (included).