The Byron Smartwares BY101 Portable Wireless Door Chime has a 50 metre operating distance. It has a choice of four melodies and offers volume control. It features self-learning codes that will keep the code even when the batteries run out and are replaced.
The battery powered portable chime can be taken anywhere within the operating range. This portable door chime can have up to 2 bell pushes controlling it. It has an 80-90dB rating, depending on the chime selected. Compatible with all Byron B ranges.
The push requires 1 x CR2032 battery (included).
The portable chime requires 3 x AA batteries (NOT included).