Hands Free Wireless Intercom Doorbell for Home Classroom, Wuloo Two-Way Communicator Doorbell Chime with 1/2 Mile Distance 4 Volume Levels 10 Chimes Battery-Operated with Mute Mode?1&1, Gray)

Additional Details from the Manufacturer

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More features

• [New Upgraded] This intercom doorbell is the upgraded version with new technology, with better voice quality and hands-free use after visitors click the CALL button. The indoor unit can now begin the conversation with the outdoor unit, a new feature. Customize your doorbell with 10 kinds of chimes and 4 volume levels (including mute)!
• [Long Range & Expandable] This wireless doorbell chime transmits up to 1/2 Mile in an open area! The wireless intercom doorbell is expandable up to 2 outdoor units and 5 indoor units. All doorbell sets are paired in the factory; you do not need to pair units if you buy the set. Just charge it and use it.
• [Wuloo Brand] Wuloo has specialized in FM / ASK /FSK/ GFSK wireless technology for more than 20 years. With a detailed manual written by a US client, you can easily use and install this intercom doorbell.
• [ Anti-Interference & No Monthly Fees] This doorbell doubles as a wireless intercom that won’t be affected by WiFi disruptions and has no monthly fees! It also won’t interfere with your other smart devices or the other wireless doorbell. Use the mute mode on the indoor unit when you want silence.
• [ IPX55 Waterproof and Built-in Rechargeable Battery ] The outdoor unit comes with a waterproof cap that protects the unit from bad weather conditions like snow and rainstorms. Features low power consumption and a built-in 1500mA battery. A fully charged battery lasts 2-3 months.