A portable 60m range chime with 4 sounds. Over a million self learning codes. The Byron BY101 will keep the code even when the batteries run out & are replaced.
The Byron BY101 can have up to 2 bell pushes controlling the chime Eg. Front/back door scenario.
80-90db rating depending on the sound.
Chime requires 3 x AA batteries (not included).
Push requires 1 x CR2032 battery (included).