QX-101 Waterproof Wireless Doorbell LED Light Home Calling Bell Ring Remote EU Plug AC 110-240V CR2032 battery included _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ NOTE: Battery is installed in the transmitter, you do not need to install any battery, just plug and play. _x000D_ Pay Attention: _x000D_ 1. Please check the power plug carefully to make sure it can be used in your country. _x000D_ 2. a CR2032 battery is installed in the transmitter, you do not need to install any battery. _x000D_ 3. Do not install the doorbell on an iron door, that will make the signal weaker. _x000D_ _x000D_ Transmitters can be paired with one or more receivers, each transmitter can be set to a different ringtone. _x000D_ _x000D_ _x000D_ Each Transmitter can be paired with more than 10 receivers, and each receiver can be paired with more than 10 transmitters. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ -38 music ringtones, multiple chord music options _x000D_ -4 levels of volume adjustment, can be muted _x000D_ -Receiver power supply: AC 110-240V plug and play. _x000D_ -Transmitter power supply: 1 piece CR2032 battery. _x000D_ _x000D_ _x000D_ -Receiver size: 89mm*47mm*26mm _x000D_ -Transmitter size:70mm*40mm*11mm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Working Principle: _x000D_ The transmitter is installed outside the door, and the receiver is installed on the power socket. _x000D_ Press the transmitter to ring the bell, and the receiver will immediately ring a bell and flash the light as a reminder. _x000D_ Not only a doorbell but also a pager _x000D_ If the elderly, children, and pregnant women have needs, they will be informed at the touch of a button, so they can sleep peacefully at night. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Technical Parameters: _x000D_ -Receiver operating voltage: AC110-240V 50HZ/60HZ, plug and play. _x000D_ _x000D_ _x000D_ -Receiver power consumption: 0.25W _x000D_ -Operating frequency; 433MHz _x000D_ -Transmitter battery: CR2032 battery _x000D_ -Transmitter Battery life: estimated 10 times a day, about 1 years _x000D_ - Adjustable volume range; 0-85dB _x000D_ - Wireless distance; about 150 meters in the open area, and about 30 meters in the buliding. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ -60 music ringtones, multiple chord music options _x000D_ -4 levels of volume adjustment, the lowest can be muted _x000D_ -LED flashing reminder-multi-button distinguished ringtone _x000D_ -No ringing in series, no ringing by mistake _x000D_ _x000D_ _x000D_ -Precautions!! _x000D_ 1. Non-professionals should not open it without authorization and repair it by themselves to avoid damaging precision electronic components. _x000D_ 2. There is a high-voltage circuit inside, please do not open it for use. _x000D_ 3. The correct use of products can effectively extend the service life. _x000D_ 4. The actual use of the remote control distance is shortened depending on the interference of environmental factors. _x000D_ 5. Please replace the battery if the use distance is significantly shortened or the sound is false. _x000D_ 6. Please do not install it on metal objects (such as iron doors, stainless steel doors, etc.) for installation. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Packing List: _x000D_ 1 Transmitter. _x000D_ 1 Doorbell receiver. _x000D_ 1 Double-sized adhesive tape. _x000D_ 1 CR2032 battery. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ How to setup the doorbell. _x000D_ Please operate Within 60 seconds after you plug the receiver in the power socket _x000D_ 1. Press and hold down the setup button on the receiver for about 4 seconds until the indicator light is on, then press the transmitter button immediately, when the indicator of the receiver flashes once to indicate the transmitter is paired. Repeat this process can pair up to 10 transmitters. _x000D_ Remind: When pairing 2 or more transmitters, you can set different ringtones. please see below steps. _x000D_ 2. Change the music for different transmitters. _x000D_ Press the music key to choose your favorite song, hold down the setup button for about 4 seconds, the LED lights on, release the setup button and press the transmitter button to pair, now the transmitter will call the current ringtone. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ How to reset and clean the code. _x000D_ Within 60 seconds after you plug the receiver in the power socket, press and hold the setup button fo