General description The Wireless Doorbell is designed for elderly care and emergency situations, featuring a portable SOS button that can be worn around the neck or kept in a pocket. It is waterproof, making it suitable for use in bathrooms (though it should not be submerged in water). The system includes one receiver and one SOS call button, ideal for monitoring paralyzed patients, the disabled, the elderly, and those at risk of accidental falls. Technical specifications Transmitter size: 6.5 x 3.7 x 1.1 cm Receiver size: 8.1 x 6.4 x 2.5 cm Remote control distance: 300 m in open space Power supply: AC 220V (EU Plug) Battery type for transmitter: CR2032 (not included) Volume levels: 4 adjustable levels from 0 dB to 90 dB Ringtones: 12 types available Material: Plastic Installation Plug the receiver into a power socket (220V). To pair the transmitter with the receiver, press and hold the volume button on the receiver for about 5 seconds until the light turns on, then release the button