ChunHee Wireless Intercom System for Home/Office, Room to Room Intercom Communication for Elderly, Two-Way Talk Security System 3000ft/1000m, 2500mAh, 16 Channel, 2W, 4 Volume

not Talk to Another Intercom—-Check if the intercom have power; Check the intercom ON/OFF. Are both intercoms set to the same channel? Please make sure they are properly set up and that you’ve waited until the other user has finished talking, be sure to release TALK when you are not speaking into the intercom. 2.Strong, Continuous “beep” sound—-Move intercoms further apart to eliminate audio feedback. Or, change your 2 intercoms to another channel. 3. Static Noise or Cannot Communicate—-Confirm both units are set to the same channel and code when you want to communicate. Or change the channel. Note: 1.Speaking and Hearing can not operate at the same time ：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.Set same channel before talking ：Please note that you will need to set the same channel if you want 2 intercom stations to receive communication. It also means any same intercoms can also communicate if they have same channel. For example, your neighbors may be able to interfere with your intercom system. We suggest setting another channel to avoid interference. 3.Keep the unit in the charge stand after each use ：Every intercom is equipped with a adapter (DC 5V), a cable and a charge stand. Please connect every intercom station to your local AC power. We kindly suggest that you keep the intercom stay in the charge stand after each use, or the intercom will power off in 24 hours. Press&Hold the ON/OFF button to turn ON it after finished charge. Features low power consumption, built-in 2500mAh battery, and an included charging base! Full battery lasts 4-6 months for the transmitter, and indoor machine lasts 1-2 days on a full charge, Please charge the indoor machine at least 6 hours after received it to ensure that there is sufficient power to use.