【8 Natural White Noise Sounds】Features gravity-sensing technology with 8 different natural white noise sounds, including ocean waves, piano, jungle birds, rain, stream, cicadas, fan, and strong wind. 【Smart Noise Masking】Long-press the M button to collect ambient noise and intelligently play white noise above the surrounding noise level, effectively masking disturbances. 【Premium Design】Scratch-resistant metal silver exterior with laser-engraved blue digital display, featuring a 4Ω 2W full-range speaker specifically designed for white noise. 【Gravity Sensing】Built-in gravity sensor automatically starts playing the selected natural sound when the device is rotated to the corresponding side. 【Customizable Timer】Top-mounted timer button allows for 15, 30, 60, or 90-minute playback, as well as continuous play option for personalized sleep routines. 【Long Battery Life】Integrated 500mAh polymer battery provides up to 15 days of standby time, ensuring extended use without frequent charging. 【Versatile Application】Ideal for business gifts, home use, bedroom sleep aid, and various other applications, making it a practical and thoughtful choice for multiple settings. Specifications: Product Model: T11 Dimensions: 49mm diameter x 50mm height Weight: 71g Speaker: 40mm diameter, 4Ω 2W full-range internal magnet Battery: 500mAh polymer battery Standby Time: Approximately 15 days Charging Port: Type-C Input Voltage: 5V Sound Options: 8 natural white noise sounds Timer Settings: 15, 30, 60, 90 minutes, and continuous play Display: Blue LED digital display