(3x AAA 1.5V batteries required(not included), or power using USB power adapter（ DC5V）（not included).
eBay
Doorbell Alarm Sensor Doorbell MP3 Doorbell USB/Battery Powered Motion Sensor Alarm MP3 Audio Player Infrared Induction Doorbell
Aliexpress UK
Card slot on the left: There is no card insertion function, and the card cannot be inserted. Speaker: Built-in 8ohm 1W speaker. A key: press once for the previous song, long press to set single/full song playback.
eBay
Smart doorbell PIR motion sensor two-way audio local alarm manual recording APP prompt HD video intercom outdoor
Aliexpress UK
Card Slot on the Left: There is no card insertion function, and the card cannot be inserted. A Key: Press once for the previous song, long press to set single/full song playback. Speaker: Built-in 8ohm 1W speaker.
eBay
LS VISION 7 Len 4 Screen WIFI Security Camera Outdoor Color Night Vision Two-Way Audio Motion Sensor Wireless IP Camera for Home
Aliexpress UK
Card Slot on the Left: There is no card insertion function, and the card cannot be inserted. A Key: Press once for the previous song, long press to set single/full song playback. Speaker: Built-in 8ohm 1W speaker.
eBay
Protection That Lasts: The included battery provides up to 2 years of power for round-the-clock security. Extensive Coverage: Detects motion within a 100° field of view up to 30 feet away—more than enough to secure an entire room of your home....
eufy
🚨【Multiple operation modes for any situation】The motion detector alarm light has 4 modes of operation: 24H ultrasonic with flashing, Ultrasonic with flashing at night,24H siren with flashing,Siren with flashing at night.
eBay
WiFi Home Alarm System GSM Tuya Smart Home Security Alarm Kit with Siren PIR Motion Sensor Remote Controls Window Door Sensor
Aliexpress UK
PIR Motion Sensors. Download your own speech, music or sound effects. Our PIR Motion Sensors have a unique MP3 file download feature. Easy to use, step-by-step instructions included. Produce an audible warning for a restricted or hazardous area.
eBay
Aqara Motion Sensor Smart Human Body Sensor ZigBee Movement Motion Wireless Connection Smart Home for Xiaomi Mijia Mi Home APP
Aliexpress UK
Detection range up to 13 feet, 120°.
eBay
PIR Motion Sensor Light Emergency Lamp with Motion Sensor Night Light 85-265V B22 E27 Stair Corridor Sensor Light LED Lamparas
Aliexpress UK
Speaker: Built-in 8ohm 1W speaker. 1 x Motion Sensor Doorbell. Press the A button to play the previous audio and the B button to play the later audio. Audio: Only support MP3. Download audio files from your computer via the USB interface.
eBay
Aqara Smart Vibration Sensor Zigbee Motion Shock Sensor Detection Alarm Monitor Built In Gyro For Xiaomi Mijia Homekit Smarthome
Aliexpress UK