Doorbells, Full Duplex Intercom Wireless Doorbell, Operates Over 1000ft Range, Rechargeable Battery Doorbell, 8 Adjustable Volume&4 Chimes Wireless, Waterproof&LED Flashlight

【Full Duplex Doorbells】This wireless doorbell is a full duplex intercom that has real-time two-way and hands-free communication. Only need to press the accept button once to start talking with visitors in the Hands-Free—doorbell for home/classroom/office.
【High Quality Sound】This doorbell has 8 adjustable volumes which can change the ringtone volume and voice volume. The volume sound is loud enough to make sure that you can hear the doorbell rings in any place of your house/office/classroom and the stereo speaker produces rich and crisp sound to support real-time two way communication.
【Long Range Doorbell】This wireless remote control doorbell with high-frequency electrical technology uses the FM signaling protocol, which provides robust anti-interference protection and multi-signal pairing. There’s no need to be concerned that the signal will not reach the door next to you. And in an environment devoid of obstacles, the detecting distance may reach up to 1000 feet.
【Long Battery Life】This doorbell has a built-in rechargeable Lithium battery to supply electricity, and when the battery is low, the doorbell receiver will sound a voice prompt. We recommend that you fully charge the doorbell before using it for the first time. The doorbell receiver battery can be used for 4 to 5 days on a full charge, and the transmitter battery can be used for 4 months on a full charge.
【SANZUCO Doorbells Package】This doorbell for home/classroom/office has been paired before delivery. It is made of high-quality ABS material with a working temperature between -4°F~140°F. This wireless doorbell also has IP55 waterproof and LED light. We provide after-sale service for our intercom doorbell. Please feel free to contact us if you have any questions or concerns about your purchase.