ZUIDID | Wireless Doorbell Intelligent Home Welcome Doorbell Button LED Light 433MHz Security Alarm Smart Doorbell

433MHz doorbell39 Ringtones melodies selectable5 Volume Levels (Including Mute)Press the Volume Button to adjust the volume level of ringtonefrom highest to mute,then skip to highest.Press and hold the pairing button until you hear one beep and indicator light blue ,then the receiver goes into the pairing/sniffer mode.Changing Melody You need to pair the transmitter again if you want to chang the chime tone. Please refer to Pairing.Press Music Up Button or Music Down Button to choose your favorite ringtoneReset/Deleting TransmittersThis process resets the receiver to factory setting and removesall pairings.Press and hold Reset Button until you hear four beeps withlight ring flashing four times.