switch output signal control signal input Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. If you violate any of these terms, the offer will be invalid. EP0067502B1 - Sound actuated light switch - Google Patents Sound actuated light switch Download PDF Info Publication number EP0067502B1. The offer is non-transferable and may not be resold. Amazon reserves the right to modify or cancel the offer at any time. Those of you who have been around as long as I have will shudder at the mere mention of 'clap switches' where you had to physically clap your hands or shout. The offer is limited to one per customer and account. Digital content and services may only be available to customers located in the UK and are subject to the terms and conditions of Amazon Digital UK Limited, including the Amazon Music Terms of Use. Here are some things you should look out for: Flickering lights sometimes when a switch is malfunctioning or dying, it will cause the power to flicker and sputter. The offer cannot be combined with any other offer. Voice Activated Switch Voice Control Delay Switch 1.5A Sound Control Board Automatically Turns off for Voice Control Light Voice Control Fan. The offer is not valid for Amazon Music Unlimited Family, Student, Single Device or Annual plan or signups via iTunes. The two switches will let you set how the doorbell will operate. After the 4 months promotional trial, your subscription will automatically continue at the monthly price of £9.99 (£8.99 for Prime members) until you cancel. Plug the power cord into a wall outlet and you are ready to try out your light doorbell. Customers who are currently in a free trial of Amazon Music Unlimited, are a current paying customer of Amazon Music Unlimited, or were previously a free trial or paying customer of Amazon Music Unlimited are not eligible for this offer. The offer is only available to new subscribers to Amazon Music Unlimited. Its first patent, filed in 1985, was for a Sound activated light switch, its claim being simply for the ornamental design, that is, the outward appearance of the switch. The promotional offer is valid until Maat 11:59 pm, and redeemable towards an Amazon Music Unlimited Individual Plan. *To enjoy Dual device connectivity between two Xiaomi/Redmi smartphone devices, please switch on the function via Xiaomi Earbuds App on one smartphone only - this feature will operate via traditional Bluetooth connection.
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