The Byron BY201F/BY202F wireless door chime has a 100 metre operating distance with an 85db rating. It provides a choice of six melodies, volume control and flashing light (optional). Self-learning codes will keep the code even when the batteries run out and are replaced. This portable/plug in door chime can have up to 6 bell pushes controlling the chime.
The Chime requires 3 x AA batteries (NOT included).
The Push requires 1 x 23A battery (included).
BY201F: 1 x Portable Chime & 1 x Wireless Push.
BY202F: 1 x Plug In Chime & 1 x Wireless Push.