Switch: Doorbell. Walkies Talkie: Support phone remote intercom. Then wait 10 seconds,press the doorbell button, you will get the notification to your phone. (Must wait 10 seconds to let the system ready).
eBay
DIY Vehicle Audio Modification,8-inch Solid Wood Subwoofer Empty Box, Car/Home Speaker Housing,Speaker Box,Customizable Openings
Aliexpress UK
NOS vintage switch.
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ZEALOT-S97 80W Bluetooth Speaker Powerful Wireless Speaker with Portable Handle, for Party, Camping,RGB Colorful Light
Aliexpress UK
Switches on Paging or Any Other Amplified Audio Signal. Ideal for Muting or Switching Primary Speakers During Paging. 25 Volt Input Also Accepts 8 Ω Inputs up to 75 Watts. Open-Collector Output Active when Module is Triggered.
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200W 12-inch Floor Speakers Surround Hi-fi Passive Speakers Home Theater High-power Bookshelf Speakers Three-unit Bass Speakers
Aliexpress UK
Power: 48W. Palette of over 16 million colors. 【Built-in Bluetooth Speaker】 The ceiling light is equipped with a Bluetooth speaker. You can connect the ceiling light through your phone's bluetooth to play your favorite music and voice stories.
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Bluetooth Speaker Enhanced Bass Portable Speaker For Makita Dewalt Milwaukee Bosch 18V Lithium Battery for Karaoke Party
Aliexpress UK
1 × Speaker Horn Push button. Easy setup. All you need is a 16mm hole and the switch will insert nicely. Switch Shell Color: Black; LED light: Blue. Push buttons Hole thread: 1mm. Switch Shell Color: Black.
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YYAUDIO One Pair HiFi Speaker Cable High Quality 6N OFC Core with Banana and 24K Gold Y plug Audio Cable for Amplifier Speaker
Aliexpress UK
SIMPLE AUDIO CONTROL This Nedis speaker control box can switch between two pairs of speakers or play all of them simultaneously from one output for flexible multi-room sound management.
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Floor standing speaker stand For Bose S1 Pro/Bose S1 Pro audio storage stand height adjustable, surround sound speaker stand
Aliexpress UK
The Monster Cable 6-Way Speaker Selector Switch is a high-quality audio accessory designed to allow users to easily switch between up to 6 different speakers. With built-in amplifier protection, this black switch ensures that your speakers are safely connected and protected.
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DX62 Bluetooth-compatible Speaker Bracket Metal Desktop Stand for Smart Speaker Hanger For SONOS for Play 1/One SL Shelf Hold
Aliexpress UK
One Sound Source Can be Selected by Connecting 2-way Manual Selector Speaker. Stereo 2 (Input / Output) : 1 (Input / Output) Selector. Easy Push-Button Selector Stereo. New generic 2 Ports 3.5mm STEREO Manual Sharing Switch Box.
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Loudspeaker Sound Box The Bass Transparent Wireless A36 Mecha Speakers Shake Speakers Audio Player Bluetooth Stereo Surround
Aliexpress UK