Description: 【Realistic Audio】: Experience the soothing sounds of nature with this bird chirping sound box, which contains 4 music tracks, ideal for recreating the peaceful ambiance of nature indoors 【Portable and Lightweight】: Its compact size makes it easy to carry wherever you go, allowing you to enjoy the relaxing bird calls anytime and anywhere, whether at home or on the move 【Quality Material】: Featuring sturdy PP, this sound box is not only aesthetically pleasing but also built to withstand wear and tear for long time use 【4 Time Duration Options】: standard 3 minutes, 15 minutes, 30 minutes, or 60 minutes. Suitable for indoor space like living room, bedroom, or office, and outdoor garden patio or balcony, etc 【Compact Design】: With dimensions of 11.9cmx3.5cmx15.8cm/4.69inchx1.38inchx6.22inch, this compact device is easy to place anywhere in your home or garden to enjoy its tranquil effects without taking up much space Specification: Material: PP Power Supply: 3pcs AA Battery(not include) Human Sensing Range: 3.0m Trigger Sound Duration: 3 Minutes 4 Duration Options: Standard 3 minutes, 15 minutes, 30 minutes, or 60 minutes Size Chart: 11.9cmx3.5cmx15.8cm/4.69inchx1.38inchx6.22inch Package Includes: 1 Bird Chirping Sound Box Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.