Door, Djustable Speaker Door Bell Alarm, Voice 2-Way Intercom for Home Security Door, Office

????????????【ADJUSTABLE VOLUME】????????????The door chime is equipped with big and adjustable speaker, clear voice, can be used as mobile interphone. Meanwhile, the smart voice 2-way intercom doorbell is low power consumption, long standby time for outdoor-bell up to six months.
????????????【LONG WORKING DISTANCE】????????????The door bell alarm has long working distance, the maximum open distance can reach 300m /984.3ft. And, the outdoor-bell pair with indoor-bell by learning its code, 1 outdoor-bell can paired with n indoor-bells and no interference each other.
????????????【BATTERY POWERED】????????????The outdoor-bell is power supplied by 4pcs aaa battery (not included), easy to replace the battery. At the same time, the indoor-bell is used with an external usb data cable. The doorbell is made of high quality abs plastic, exquisite and small, beautiful and high grade.
????????????【EASY TO INSTALL AND USE】????????????The door bell alarm is easy installation, stick directly to the wall with adhesive tape. And, the frequency of use of this product is in accordance with national regulations and will not cause harmful electromagnetic interference, which is universal worldwide.
????????????【】????????????We promises every customer a shopping satisfaction, feel to reach us if you have any questions about your purchase. We will give you a professional and detailed reply within 24 hours.Click to buy now!

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