Infrared Induction Wireless Door Bell Chime Anti-theft Door Greeter Sensor Alarm Welcome Device

Label:Yes Power supply mode Battery type: 3*AAA batteries or Power cord supply (battery and power cord not included) Size: 82*50mm(3.23*1.97in) (L * W) Color:black,white Material:ABS Package:1pc Welcome Doorbell

Features: 1.Humanized design, simple installation, no need for professional installation, ready to install and use 2.Infrared sensor, available day and night, regardless of day or night 3.The volume is adjustable in three levels. Adjust the sound to suit your needs according to your location. 4.High sensitivity, sensing distance 2-7 meters. Sensing range can be adjusted freely 5.Bracket activity range: 360° free rotation without dead ends 6.Dual power supply, available battery/power supply (battery and power cord not included

Function Description: 1.Normal mode: Short press the song selection button to play the next song. There are a total of 19 sounds for you to choose from 2.Recording mode: Press and hold the recording button to play the "BI" sound to start recording. The recording time is 30 seconds. When the 30 seconds are up or halfway through, release the recording button to indicate the end of the recording and play BIBI twice. 3..Short press the recording button to announce "recording mode" and enter the recording mode. In the recording mode, the recorded voice will be broadcast the next time the infrared sensor is used. If you record again, the previous recording will be overwritten. 4.Power on/off button/volume button: three levels (large volume, medium volume, low volume), the volume adjustment has corresponding volume level prompts. Holding the key for 3 seconds is the power on/off key (with a beep), and it powers on by default after power-on.