【Soothing and Natural Birdsong】This birdsong sensor is perfect for creating a relaxing atmosphere in your bedroom, living room, bathroom, or hallway. Introducing birdsong into your home can help reduce stress, improve sleep, and increase concentration. This excellent speaker emits realistic birdsong, transforming your bedroom or studio into a tranquil oasis. 【Motion Sensor】When you approach the birdsong sensor, it plays approximately two minutes of natural birdsong. The sensing range is 3 meters. The music starts when the motion sensor detects movement; our natural sound speaker is automatically activated by the motion sensor. The music plays in a loop for 120 seconds. 【Easy to Use】Create a relaxing atmosphere with a simple press of a button. The speaker has volume control for easy adjustment to your preferences. (This product uses 3 AAA batteries; batteries are sold separately.) 【Placement or Hanging】This birdsong sensor requires no complicated installation and has a simple, natural design. With the convenient wall mount, you can place it on a flat surface or hang it as needed. Whether you mount it on a wall, a table, or in front of a window, it can meet all your needs.