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BT Loud extension ringer

The Bell 50E from BT, is suitable for internal use in noisy environments where a loud ring is required. Mains power not required. Connects to a standard BT socket.

You will need a spare incoming BT socket or a two-way adapter to install this product.
BT Loud extension Indoor Ringer
£ 34.26

Installs in seconds
Power Supply not needed
Connects to a standard BT socket
This product has a REN of 1