Wuloo 1/2Mile Wireless Doorbells Door Chimes with Waterproof Cap Doorbell Button
1. [Simple Installation & Expansion] Secure this outdoor doorbell chime to your door or wall with the included screws for ultimate security. The wireless intercom doorbell is expandable, so you can extend nearly any indoor or outdoor system, even to a set of 2 transmitters and receivers each!
2. [Long Range & Easy Sound Adjustments] This wireless doorbell transmits at a distance of up to 1/2 Mile! Customize your doorbell with 20 kinds of chimes and 3 volume levels!
3. [100% Satisfaction Guaranteed] Love it or your money back! We provide a 1-year quality warranty and lifetime service for our intercom doorbell. Please feel free to contact us if you have any questions or concerns about your purchase.
4. [Anti-interference & Multifunctional] This doorbell doubles as an FM wireless intercom doorbell that won’t be affected by WiFi disruptions! It also won’t interfere with your other smart devices. Buy two receivers and use as a set of walkie-talkies, or use the mute mode on the indoor intercomunicador to turn off the unit when you want silence.
5. [IPX55 Waterproof and Built-in Rechargeable Battery] The Wuloo intercom doorbell is waterproof even in bad weather conditions like snow and rainstorms. Features low power consumption, built-in 2000mA 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.
 
Outdoor machine overview:
 
The outdoor machine should be installed on the wall closest to your door with the provided screws. The outdoor machine will remain in sleeping mode and will be activated when visitors click the CALL button.To save power, the outdoor machine will return to sleeping mode if it does not detect action within 25 seconds. This enables the outdoor machine to work well for up to 4-6 months when fully charged. You can expand the system with as many outdoor machines as you like for all of your doors.
 
Note:
1. The outdoor machine can work 4-6 Months after full charged. But it only have 20% power when you received it. so please full charge it at first.
2. Please use the small screw to fix the outdoor machine to the waterproof cap, which can avoid being stolen or missing.
 
Indoor Machine overview:
The indoor machine should remain on the charging stand. You may place the charging stand on a nearby desk, coffee table, or lamp stand. The indoor machine will always remain in working mode and will last up to 1-2 days when fully charged. We recommend that you leave the indoor machine on the charging stand after use. You can expand the system with several indoor machines to ensure you will not miss any visitors. For systems that have multiple indoor machines, you can use them as walkie-talkies for outdoor activities.
 
Note: The Indoor machine is turn off when you received it, so please press&hold ON/OFF button for 3 seconds to turn on it at first.
 
 
Specification

Operating Range: 1/2 Mile(2640 feet)
Tunes: 20 
Volume: 3 levels
Shell Material: ABS
Doorbell Voltage: 5V 1A 
Receiver Size: 4.8 x 2.56 x 1.05 inch
Transmitter Size: 5.15 x 3.54 x 2.24 inch
 
 
Package Included

1 x Doorbell Button
1 x Doorbell Transmitter 
1 x Anchors
1 x Charge & Cable
1 x User Manual
3 x Installation Screws 
1 x 2000mA Rechargeable Battery ( Build-in)
 
 
How to use the wireless intercom doorbell
1) Set the same channel (A, B, or C) for both the indoor and outdoor machine;

2) Long press the ON/OFF button of the indoor machine to turn it on;

3) Attach the outdoor machine to the exterior of your front door. Once the chime rings, click the ON\OFF button or the TALK button of the indoor chime to stop the ringing. To speak to the visitor, press and hold the TALK key to communicate with the outdoor device. Release the TALK button after speaking to listen to any response from outside. The visitor simply press and hold the TALK key to respond.

Note:

1.The factory setting of the indoor machine is in the shutdown state. After receiving the goods, please long press ON/OFF key button for 3 seconds to turn on the indoor unit.

2.Outdoor machine will return to sleeping mode if it does not detect action within 25 seconds. Please click CALL button on the outdoor machine to activate the outdoor machine. Each conversation must be initiated by outdoor machine, and then the indoor machine can talk with the outdoor unit after receiving the ring.

3.This wireless intercom doorbell is a unidirectional transmission system with the same frequency. You cannot speak to your visitor and listen to them at the same time. Please wait until the visitor is done speaking to press the TALK key to respond.

4.The intercom doorbell is a real-time communication system which has no memory or storage function. Therefore, you cannot receive any information while you are talking with others(i.e. pressing the TALK key).

5. Please note that you will need to set the same channel if you want 2 intercom doorbells to receive communication. It also means any other FM wireless intercom device can communicate with your system if they have the same frequency. For example, your neighbors may be able to interfere with your intercom system if they are using intercom device. We suggest setting your system to another channel to avoid interference.

Troubleshooting:

Problem 1: Does not work

Possible solution 1: Check if the indoor machine turned on. If not, please long press the ON/OFF key of the indoor machine to activate it.

Possible solution 2: Check if both devices are charged. Charge devices at least 1 hour and try again.

Problem 2: Cannot hear responses

Possible solution 1: Check if the 2 devices are on the same channel. If not, set them to the same channel
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