Can the amp support more than 2 speakers?

Yes, but the sound quality will be influenced, if you want to 4 speakers work torether, we suggest you purchase another one.If you are interested, please visit the website below: https://www.amazon.com/dp/B09K7N3MFK?ref=myi_title_dp

Each Speaker has two small Flat slide switches on the edge of the woofers. What do these switches do? there are wires connected to them.

Sorry, in our speaker construction, there are only two speaker wire connection switches that can be depressed.

Why does amazon have "buy it with" the bluetooth hwa-16bt which does not connect to bt speakers?

The HWA-16BT is wall amplifier, it can work with ceiling passive speakers. If you are interested, you can visit the website below, it will be available in 1-2 weeks. https://www.amazon.com/dp/B09LM1BGYF?ref=myi_title_dp

If i buy two sets of these and connect them all can i choose to pair either set individually or simultaneously? would like 2 outside and 2 in kitchen

You could use each set individually. But not at the same time. Due to the way bluetooth work you can only pair one device at a time. You could use 4 speakers at one time but would want to have a switch to turn the volume off when you don't want the outdoors or the kitchen on.

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Herdio 6.5 Inch Bluetooth Ceiling Speakers 320W 2-Way Flush Mount in Wall Speakers for Home Bathroom Kitchen Office with Full Range Superior Sound,HCS-818BT

Herdio 6.5 Inch Bluetooth Ceiling Speakers 320W 2-Way Flush Mount in Wall Speakers for Home Bathroom Kitchen Office with Full Range Superior Sound,HCS-818BT

Product ID: 373879039

Details

Audio Output Mode
Stereo
Brand
Herdio
Connectivity Technology
Bluetooth
Frequency Response
20 KHz
Speaker Maximum Output Power
320 watts

📶40m Bluetooth range

🔊320W peak power

🛠️4.1" mounting depth

$345.03

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your space with sound that’s as smart as you are.

COMPLETE PLUG AND PLAY KIT - Includes amplifier, power supply, cables, and easy-install guide—get premium sound without the hassle.
IMMERSIVE 320 W SOUND POWER - Fill your space with rich, room-filling audio that commands attention.
ULTRA SLIM FLUSH MOUNT DESIGN - Sleek 4.1-inch depth fits effortlessly into ceilings for a clean, modern aesthetic.
SEAMLESS BLUETOOTH CONNECTIVITY - Pair instantly with any smartphone or tablet up to 40 meters away—cut the cords, not the quality.
DURABLE ABS BUILD FOR HUMID SPACES - Engineered to thrive in bathrooms and kitchens without compromising sound clarity.

The Herdio 6.5 Inch Bluetooth Ceiling Speakers deliver powerful 320W stereo sound through a sleek, flush-mount design. With a 40-meter Bluetooth range and durable ABS construction, these speakers are perfect for seamless integration in homes, offices, and humid environments like bathrooms and kitchens. The package includes everything needed for quick installation, making it an ideal upgrade for professionals seeking premium audio with minimal fuss.

Specifications

ASIN	B09FZCY8N7
Additional Features	Stereo Pairing
Age Range Description	Adult
Antenna Location	For Smartphones or Tablets
Audio Driver Size	6.5 inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Battery Average Life	3 hours
Best Sellers Rank	#155,379 in Electronics ( See Top 100 in Electronics ) #285 in Ceiling & In-Wall Speakers
Bluetooth Range	40 meters
Brand	Herdio
Built-In Media	2* 6.5 Inch Ceiling Speaker, 2* Speaker Cable, 1* Wall Amplifier, 1* Power Supply, 1* Manual
Color	White
Compatible Devices	Smartphone
Compatible with Vehicle Type	Car
Connectivity Protocol	Bluetooth
Connectivity Technology	Bluetooth
Control Method	App
Controller Type	Button
Customer Package Type	Not Flat Free Package (FFP)
Customer Reviews	4.5 out of 5 stars 269 Reviews
Enclosure Material	Acrylonitrile Butadiene Styrene (ABS)
Frequency Response	20 KHz
Impedance	8 ohm
Is Waterproof	FALSE
Item Weight	4.22 kg
Manufacturer	Herdio
Maximum Range	40 meters
Model Name	HCS-818BT
Model Number	B09FZCY8N7
Mounting Type	Ceiling Mount
Number Of Circuits	2
Number of Audio Channels	2
Number of Items	2
Number of Power Levels	1
Power Source	Corded Electric
Speaker Maximum Output Power	320 watts
Speaker Size	6.5 inches
Speaker Type	Surround Sound
Specific Uses For Product	home_entertainment, outdoor
Subwoofer Connectivity Technology	Wireless
Subwoofer Diameter	6.5 inches
Tweeter Diameter	3.08 inches
Unit Count	1 Count
Warranty Type	Limited
Water Resistance Level	Waterproof
Wireless Technology	Bluetooth
Woofer Diameter	6.5 inches

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