Enhance your Halloween experience with these motion-activated sensors, perfect for spooking guests. Equipped with pre-recorded scary sound effects like eerie screams, cackling witches, and moaning zombies, these sensors automatically play audio when motion is detected. You can also upload your own MP3 files, including voice messages, music, or additional sound effects, using the USB port for customizable scares. The sensors are powered by either 3 AAA batteries or a mains power adaptor (sold separately) and offer up to 4 meters of motion detection with a 120-degree angle. With a built-in microphone for recording your own sounds, you can adjust the volume with three settings. The package includes two sensors and a wall-mounting bracket, perfect for creating spooky entrance greetings or animating Halloween props and costumes.