What is the diameter of the speaker?

It’s small- maybe 3 inches across

I wanted to use an aux extension for the microphone what size is the aux connector?

Its not real large, about small speaker size. I don’t know the exact size

Does the outside speaker receive and transmit?

Yes. I get clear responses and our patients can hear me loud and clear also.

The system operates on a 12-volt dc correct? can you provide a standard usb plug to power unit from 12 volt battery auto setup?

It works on 110 ac which you plug into the wall. No usb, just a plug.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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CallToU Window Speaker Intercom System,Dual Way Anti-Interference Intercommunication Microphone Talk Through Glass Window,for Business,Bank,Office,Hospital,Counter,Store,Station,School and More

Product ID: 244268574

Details

Brand
CallToU
Color
Black
Compatible Devices
Personal
Connectivity Technology
Play Plug
Mounting Type
Wall Mount

🔄automatic two-way intercom

🔊5W high power output

🛡️4-core aluminum foil shielded wire

€ 125.78

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔊 Stay heard, stay ahead—communication that means business.

HANDS FREE EFFICIENCY - Automatic two-way voice transmission means no buttons to press—just seamless, instant connection.
PLUG PLAY SIMPLICITY - Effortless installation with power indicator and simple switch activation gets you up and running in minutes.
TAILORED SOUND CONTROL - Independent internal and external volume adjustments let you customize audio levels to fit any setting perfectly.
INTERFERENCE NOT HERE - 4-core aluminum foil shielded wiring delivers unbeatable anti-interference for natural, noise-free communication.
CRYSTAL CLEAR CONVERSATIONS - High power 5W output ensures your voice cuts through any busy environment with clarity and volume.

The CallToU WI08 Window Speaker Intercom System is a robust, dual-way communication device designed for professional environments like banks, hospitals, and offices. Featuring 5W high power output, advanced 4-core shielded wiring for anti-interference, and automatic hands-free operation, it ensures crystal-clear conversations through glass windows. With independent volume controls and easy installation, it’s engineered to streamline secure, efficient communication in busy, noise-prone settings.

Specifications

ASIN	B08LY9ZK5P
Antenna Location	Video Conference, Voice Recording
Audio Input	Auxiliary (3.5mm)
Best Sellers Rank	#252 in Home Security Systems
Brand	CallToU
Built-In Media	Double Sided Tape, Power Adapter
Color	Black
Compatible Devices	Personal Computer, Speaker
Connectivity Technology	Play,Plug
Connector Type	Aux
Customer Reviews	4.1 4.1 out of 5 stars (146)
Enclosure Material	Metal
Frequency Response	10 Hz
Item Weight	0.55 Kilograms
Manufacturer	CallToU
Mfr Part Number	WI08
Model Number	WI08
Mounting Type	Wall Mount, Pole Mount
Number of Channels	2
Output Wattage	5 Watts
Power Source	dc

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