The Byron BY301/02 Portable Wireless Chime Kits provide a choice of eight melodies and volume control. It features self-learning codes and 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. It has a 90-94dB rating, depending on the sound.
The chime requires 3 x C batteries (NOT included).
The push requires 1 x CR2032 battery (included).
Operating Distance: BY301: 100m (Optional Strobe Light), BY302: 200m.