Question 1

Hi, please tell me about the security on these. Can someone eavesdrop on our conversations? Is the communication encrypted?

Accepted Answer

I purchased these units less than two months ago. Recently I have heard multiple conversations coming through the intercom. The other night I had to unplug my units because of the chatter.

Question 2

I want to use in a Doctor office. Does it have a beep to notify? I want the doctor to press a button and let us know he is on his way out of room.

Accepted Answer

Hi, 
Thank you for your attention for Wuloo wireless intercom system. 
Of course, this intercoms have a beep function to notify. There has a CALL button on each unit, press it and the other devices with the same channel code will receive the ring.
If you have any other questions, please feel free to contact us, we are always happy to service for you. 
Have a nice day. 
Wuloo Customer Service Team

Question 3

how many intercom units can be run on one system? if you can run more than four can you buy separate units to add to the system?

Accepted Answer

Hi Friend, thanks for your attention for our products. 
Yes, this intercom have 10 channel and 3 codes, so it  can be run more than four. but we suggest that you run it less than 10 units in one system. Besides, you can buy separate units to add to the system, it's easy to add it.
If you need a intercom system more than 10 units, we suggest another model in our sotore, here is the link :
https://www.amazon.com/Wuloo-Intercoms-Wireless-Communication-4Stations/dp/B07H2XR6MP

Question 4

Will it be used with batteries?

Accepted Answer

Hi dear,
Thank you for your interest in our products.
This intercom can’t be used with batteries, but it supports power bank supply.
If you have any other questions, please feel free to contact us, we are always happy to service for you.
Have a nice day.
Wuloo Customer Service

ASIN	B07G2W9KC9
Additional Features	1 Mile Range and 10 Channels, Support Power Bank Supply
Best Sellers Rank	#43,601 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Commercial Intercoms
Brand	Wuloo
Built-In Media	4 Wireless Intercoms, 4 Adapters, 4 Cables, 4 User Manuals
Color	4 units set Black
Connectivity Protocol	FM
Customer Reviews	4.1 4.1 out of 5 stars (2,539)
Item Weight	3 pounds
Manufacturer	Wuloo
Mfr Part Number	WUL-WIS-4P-Black
Model Number	WL666-4 Stations
Number of Channels	10
Number of Packs	1
Talking Range Maximum	0.5 mile
Tuner Type	FM
UPC	603849908515
Voltage	5 volts
Water Resistance Level	Waterproof
Waterproof Rating	IP67

Intercom System WL666 - 4 Stations Black

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