Feature: 1. Natural Sounds: Features 9 natural white noises such as lullabies, wood burning, thunderstorm, waves, bird songs, etc., providing a relaxing and tranquil environment for improved sleep quality. 2. Multifunctional: Comes with a 30‑60‑90min timer setting, saving energy and helping you fall into a peaceful sleep, LCD display showing time in 12/24 hour format, real time temperature and has an alarm function. 3. Clear Audio Quality: Designed with advanced technology, the knob controlled sound source delivers high fidelity sound quality, immersing you in deep sleep. 4. Versatile Sleep Aid: This sound machine can be used as sleep aid, for relaxation, baby soothing and in many other scenarios, offers a tranquil and calm environment. 5. Compact and Portable: The baby sound machine is lightweight and easy to carry, this baby sound machine is ideal for travel, office or home use. Specification: .Item Type: Baby Sound MachineMaterial: Plastics + electronic componentsSize: Approx. 180x108x87mm/7.09x4.25x3.43inBattery: 2000mAh lithium battery (built in)How to Use:1. Playback mode: A. Turn the power switch to "ON" to power on, and automatically play the sound of the corresponding gear of the band switch; Rotary band switch can switch different sounds; Select neutral to not play; B. You can use the Vol+ key and Vol- key to adjust the sound during playback. Short press to adjust the volume step by step, and long press to adjust the volume quickly. 2. Timing Settings: Timing: 30 minutes, 60 minutes, 90 minutes; Press the Timer key to select the timing time. Press for the first time, LCD flashes 0:30, fixed for 30 minutes; Press the second time, LCD flashing display 1:00, timing 60 minutes; Press the third time, LCD flashing display 1:30, timing 90 minutes; Press the fourth time, the LCD displays the clock time, the product is not timed (infinite cycle mode); On the timer countdown screen, press the Clock key to switch to the time screen for 5 seconds and then automatically switch back to the countdown screen. 3. Time setting: A. Press the Clock key for 2 seconds to enter the time setting, and the time (hour: minute) starts to blink; B. Press the Vol+ key to adjust the hour (hold down the Vol+ key to quickly adjust the hour). Press the Vol- key to adjust the minutes. (Hold down the Vol- key to adjust the minutes quickly.) c. After setting the time, press the Clock key to confirm the setting; D. During the setting process, if there is no operation for 10 seconds, the LCD will not blink and determine the adjusted time; 4. Alarm setting: A. Press the Alarm key for 2 seconds to enter the alarm setting, and the alarm time (hour: minute) starts to blink; B. Press the Vol+ key to adjust the hour (hold down the Vol+ key to quickly adjust the hour). Press the Vol- key to adjust the minutes. (Hold down the Vol- key to adjust the minutes quickly.) c. Press the Alarm key to confirm the Settings. If there is no operation for 10 seconds, the LCD does not blink and automatically determines the adjusted alarm time; And return to the time display interface; D. When the alarm is off, it will automatically turn on the alarm and blink to display the last set alarm time; E. During the alarm playing process, press the Alam key to end the alarm or end the alarm automatically after 90 seconds of playing; F. When the Alarm is playing, the vibration sleep aid device will trigger the wake up snooze function and ring once every 10 minutes. During the ringing process, you can press the Alarm key to end or pat the product itself to stop the alarm. If the vibration continues to wake up the snooze function can be cycled up to 5 times; G. Alarm on/off: there is no alarm clock by default. After the alarm is set, the alarm can be enabled or disabled by pressing the alarm. Otherwise, it is not displayed. 5. Backlight control: After the system is powered on, the backlight is on for 15 seconds and automatically turns off. When the backlight is off, press any key to turn on the backlight, but do not start the corresponding function of the key. If no operation is performed within 15 seconds, the backlight will automatically turn off. 6. Celsius/Fahrenheit temperature setting: Press the ° C /F key to switch degrees between Celsius and Fahrenheit. 7.12/24 switch You can press the 12/24H key to switch to the 12/24 display system. By default, the 12-hour system is used to power on. 8. Charging instructions: Built-in 1800mAh lithium battery, LED red light during charging, green light after full. 9. Low battery warning: When the battery is too low, the symbol flashes on the LCD screen. In low battery state, all key functions are invalid; Only clock display and temperature display function. Package List: 1 x Baby Sound Machine1 x Charging Cable