Byron 776 doorbell.

• Produces classic "ding dong" sound.
• 80dB maximum.
• Built-in 8V 1A transformer.
• Simple 2-wire installation.
• Includes wall fixings.
• Doorbell push button sold separately.
• Suitable for indoor use only.
• Dimensions (mm): 167(H) x 105(W) x 50(D).