【10 Channels & 3 Digital Code】Qniglo wireless room to room intercom systems has up to 5280 feet long-range communication distance. Besides, you may set specific channel and code according to your different communication requirements for your wireless intercoms and others from built-in 10 channels and 3 digital codes, let your conversation clear and private without any interference. Perfect use for department to department, room to room, building to building communication at home or office. | 【Clear Sound Quality & Hands Free Talking】Qniglo wireless home intercom system has built-in a crisp chip and auto squelch function to provide you clear and anti-interference sound quality, ensure your communication reliable and secured. This room to room intercom set features VOX (voice activated) function, allow you to easily talk to each other hands-free without yelling through the house. It is convenient to call between long distance rooms, like house or office. | 【Expandable & Conference Call】You can add more intercoms to build wireless intercom system for home/business. Simply press and hold the Group button, then you can speak to all the intercom stations in this system. And you may also call to specific one by press "CALL" button. Great for conference call in business. | 【Room Monitor Function】The intercoms also features monitor function, you could put the intercom in the room you hope to monitored like baby's room/ elderly and press the monitor button of the intercom to let it stay in transmit mode. For more function details, you may refer to the user manual. | 【Best Quality Assurance:】We provide a lifetime service for Qniglo intercoms wireless for home/business/office. Please feel free to contact us if you have any questions or concerns about your purchase.