IR Motion Sensor Doorbell IR Doorbell, PIR Infrared MP3 Audio Player Doorbell Powered Motion Sensor Activated Alarm Sensor Doorbell for Entry Door Home Automation Devices - Pissente, Pissenteguxhm3tyf8

• Power Supply: The doorbell alarm is powered by three AAA batteries (not included) or USB power supply, two power supply methods for you to choose, can be applied to different ,Motion Sensor Alarm Two Playback Modes: The motion sensor alarm only supports playback of MP3 audio and has two playback modes, full loop and single loop, with two levels of volume selectable,Sensor Doorbell Easy to Operate: The infrared doorbell can download audio files from the computer through the USB interface, press A to play the previous audio, press B to play the next audio,Doorbell Alarm High Quality Material: The IR sensor doorbell is made of high quality ABS material, not easy to damage, long service life, pure white appearance simple ,IR Doorbell Body Sensor Function: The motion sensor doorbell can sense up to 4 meters, built-in 8Ω 1W speaker, built-in 32Mbit (4Mbyte) flash memory, excellent performance,Motion Sensor Doorbell