1、[Wireless Intercom System]: This wireless intercom phone operates at 433MHz and offers stable digital transmission over long distances. It doesn't require any wiring, network, or additional fees, making it a plug and play device with built in signal. 2、[Supports Multiple Devices]: The main unit and sub units can support up to 99 devices for intercommunication. Each unit displays its own ID number, ensuring secure digital encryption and preventing code interference. 3、[Adjustable Call Features]: The device offers incoming call display, adjustable call volume, and one touch calling. It also features a one touch broadcast function and 38 different ringtones with adjustable volume. 4、[Long Range]: The wireless transmit distance reaches up to 1 kilometer, with clear sound quality for two way conversations. The device supports simultaneous talking without the need to alternate pressing buttons, ensuring stable performance. 5、[Versatile Application]: This wireless intercom phone is suitable for a wide range of settings, including offices, factories, hotels, KTVs, hospitals, and other public venues. The device can penetrate up to 8 walls within a room, making it a tool for any environment.
Specification
Power Supply Method: Direct power supply, USB interface 5V2A DC
Style: Extension
Working Temperature: -10 ° C to 55 ° C
Transmission Distance: Approximately 1000 meters of open space, 5-40 meters of partition walls, floors 1-8
Working Power: 0.5W
Working Frequency: 410MHz~460MHz
Working Hours: plug-in work
Music Ringtones: 38 ringtones
Volume: Level 3 adjustment (standby machine volume adjustment key)
Call Sound: Level 3 adjust call size (adjust volume key during call operating)
Button: 10 numeric buttons, 1 call button, 1 settings button
Host Interconnection, 2-100 interconnected hosts and extensions, supporting up to 100 interconnections
Working Current: 400mA
Transmission Power: <30dbm
Backup Current: 70mA
Receiving Sensitivity: >-100dbm
Product Size: 170 * 110 * 54mm/6.7 * 4.3 * 2.1inch
Points for Attention:
1. If the call bell rings only once or the call is interrupted, it indicates that the distance is far. Please adjust the distance
2. Unclear call, noise, automatic interruption - indicates a long distance. If there is an interference source, please adjust the distance
3. Unable to make calls - Check if network pairing is successful
4. The screen flashes and the power indicator light flashes frequently - indicating that the power adapter is unstable. Please replace it with a regular 5V2A power supply
5. Whispering sound - indicates that the distance is too close
6. If the screen is not lit and the power indicator light is not on, it indicates that the power switch has not been turned on
7. Only a beep sound during the call indicates that the machine being called has not hung up properly
8. Cannot broadcast - This indicates that it is not the first host in the code (press the number<3>key), which is the code transmitter
Package List
1 * Intercom Telephone Extension
1 * Manual
1 * Power Cord
1 * Adapter
Note
The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
Please allow slight manual measurement deviation for the data.

Products received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with local consumer laws. We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. Please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.