2 best school intercom systems

• [ Excellent Signal ] Clear sound quality and long range. An enhanced signal with 5280 feet range helps ensure crisp sound quality. The most trusted wireless intercom system for home!
• [ 22 Channel and 100 Digital Code] 22 channels and 100 digital codes in a secure wireless intercom system. Features an enhanced anti-interference and can work with other intercoms with the same digital channel code!
• [ 100% Satisfaction ] Love it or your money back! We provide a lifetime service for our intercom. Please feel free to contact us if you have any questions or concerns about your purchase.
• [ Easy to Use with Detailed Manual ] Features include Monitor, Talk, VOX (Voice Operated Exchange), Group, and Calling function. Increase/lower volume, power switch, display screen too! This intercom system is easier to use than others with user-friendly multi-functions and included step-by-step instructions!
• [ Supported by Power Bank for Outdoor ] This device is compatible with Power Bank (5V 1A) making it easy to take these intercoms any place you want.

User questions & answers

Question:	does this have an outside unit, just a call button and pings all units? (ie secure, cant be changed stolen etc (better doorbell
Answer:	Yes, the intercom is two-way real-time so the elderly person will be heard without pushing any buttons.
Question:	Esta incluido el cargador? Es para 220v
Answer:	First, plug the micro USB cable into the USB port on the back of the unit, then connect the other end to the AC adapter and plug into a power supply. The unit can also run on an 18650 battery (not included) as backup for up to one week. Press the power button for 3 seconds to turn off. REGISTRATION MODE: Each secondary intercom (MC-616S) must be registered with the Master intercom (MS-616M). To register an MC-161S with a MC-616M, begin by placing the Master into registration mode by simultaneously pressing and hold #0 and #3 on the Master until you hear a confirmation tone. Next, simultaneously press and hold the #0 and #3 buttons on the secondary intercom until you hear another confirmation tone. You will hear a third tone on the secondary intercom and the corresponding channel button will be on indication the assigned channel number. One Master intercom may be paired with up to five secondary intercoms. Master units default to channel #0. Secondary channel assignments (1-5) are automatically determined by the Master intercom during registration. CANCEL REGISTRATION - You may unpair two registered intercoms. First, press and hold the #0 and #3 buttons on the Master (MC-616M) until you hear a confirmation tone, identify which channel is being unpaired by pressing that number on the Master 7 times. For example, if you are unregistering a secondary unit that has been assigned to channel 1, then on the Master, press 0 and 3 until you hear a tone, then press 1 seven times. You do not need to press any buttons on the secondary intercom. OPERATION - Press the CALL button first and then press the channel button that you want to communicate with . Press the CALL button to answer on another intercom to enter real-time two-way intercom mode. Press the CALL button again to end the call mode.
Question:	It can be an external speakers and microphone
Answer:	Hello, This is Leehom from eMACROS customer team and we are happy to help you for this issue:) The slave units can not talk to each other without the master and you should pair the master and slaver to let the slave units talk to another slaver. Please feel free to contact us through [email protected] if you need any further help. Kind regards, Leehom
Question:	how many intercoms can be hooked up together
Answer:	you can use it like a monitor

Product features

Usage Scenarios

1. Channel key does not light----Check the AC power cord. Is it connected properly? Or change AC adapter to test.

2. Cannot receive response---- Please make sure the intercom set to designated channel? If not, be sure to release TALK when you are not speaking into the intercom. Also be sure to press TALK or CALL when the intercom is in MONITOR mode.

3. Cannot talk to another intercom---- Are both intercoms set to the same channel and code? Please make sure they are properly set up and that you’ve waited until the other user has finished talking.

4.Strong and continuous "beep" sound, static noise ----Move intercoms further apart to eliminate audio feedback. Or, change your intercom to another channel or code.

5. Unit doesn't work----Try the units in a different location. If the units work in a different location but not in your home, there may be a problem with your home concrete wall.

6. Cannot communicate----Confirm both units are set to the same channel and code when you want to communicate. Or, change locations by using Power Bank and moving to other locations for better reception and transmission. Or change the channel code.

Note:

1.The intercom system is a real-time communication system which has no memory or storage function. Because of this, you cannot receive any information while you are talking with others. Additionally, you cannot speak to another user if they are speaking at the same time.

2. Please note that you will need to set the same channel and code if you want 2 intercom stations to receive communication. It also means any other intercoms can also communicate if they have same channel code. For example, your neighbors may be able to interfere with your intercom system. We suggest setting another channel or code to avoid interference.

3. A tip for setting your home intercom system

For example, let’s say you have a 4 station intercom system for your home for different rooms. You can set all 4 stations with the same code A(code A, B or C are choices), then you set different channels for all 4 stations. In this case, you can just click a channel number to call others without set code because your codes are all the same. If your system receives interference, you can change it to another code for all of your stations without changing every station's channel making this a very convenient option.

4. We sincerely suggest that you can read User Manual before you use our intercom system.

• Warm Tip:

Our company is a professional company for FM wireless products. All of our products have passed FCC certification, the FCC ID for this product is 2AQQS-888, you can use it without any worries.

• Clear two way sound;window speaker intercom system adopts full duplex technology with great sound transmission; 3W Main sound and sub sound signal output;It also adopts a 4 core high-strength aluminum foil shielded wire for less signal interference
• Durable use;2 way window intercom use aluminum alloy panel;There is also a metal tube to protect the foil shielded wire; more sturdy; It can be installed in a commercial ticket window to hear customers better
• Recording Function;There is 3.5mm jack recording in the main station;So it support to connect external recording device; So it works very well in a small business area with a window barrier
• Knob Voice Adjustment; Bank window intercom system has the ability to adjust the volume on the both sides; And knob design can be more convenient to operate; Less static noise or hollow sounding
• Easy to set up; it is really easy to use and setup just you have to plugin and it work; You can use it at check cashing place or groceries store; No need to use sign language with customers

User questions & answers

Question:	I just need one. Do you sell just one system
Answer:	Yes
Question:	What is the diameter of the disc
Answer:	Honey Beige
Question:	Is there a way to extend the wire so that you can put the customer microphone farther away
Answer:	Warm... i tried w4 for winter n5 for spring and w6 summer i have blue and green veins not too yellow so i am neutral but i found Warm shades work better on my skin

Product features

Retekess TW104 window speaker

Clear Sound

• window speaker system adopts full duplex technique with 4 core high-strength aluminum foil shielded wire;
• high-quality personal communication between people separated by security or isolation barriers

Voice Adjustment

• Knob adjustable voice type;
• Hands free two-way talkback full automaticity;
• the volume of master station and substation can be adjusted separately by oneself

High Power Output

• High power for main sound and sub sound signal output;
• Microcomputer processing circuit with noise reduction function to solve echo and howling

Safe Plug

• The main unit is designed with a cable protection function to protect each cable plug from being used for a long time without being damaged;
• More safe plug, preservative, durable use

Recording Function

• Have output for recording, can connect record equipment external.
• Widely use at any window internal/external intercom;
• So it is a good choice for bank

Station

• Full Duplex voice intercom technology automatically recognizes and processes voice signals, and does not require any operation during the call.
• 2 way window intercom works well for movie theatre at the ticket windows

Theater

• Microphone and speaker adopt integrated design, and realize one-line connection with the host, easy to install.

Bank

• The main unit is designed with a cable protection function to protect each cable plug from being used for a long time without being damaged.

Hospital

• This intercom allows the tech and patient to communicate without pressing any buttons. The tech could lower their volume so that the patient could not hear anything