<b>Button Tips:</b><br>Power Button: First press is to power on, second press is for music pause, third press is to power off.<br><b>Sound Choosing Button:Short press is to switch sounds, long press for 3 seconds is to loop all songs.<br><b>The machine has 30 minutes default timer to save battery power, music and light will off after 30minutes playing time. If you want the machine to be with baby all night, just turn on the cry sensor, when it detects sound, light and music will activate again.<br><br><b>1.<b>❤ 【15 High Quality Lullaby Songs】</b> Elegant Heart Shape Design Baby Sound Machine with 15 calm soothing sounds to soothe baby into a peaceful sleep, including white noise, shush sound, ocean wave, bird song and 9 different lullbies.<br><br><b>2.<b>❤ 【Colorful Moon & Starry Night Light Display Projector】</b> Press the light projector then a colorful galaxy of stars in darkness. The light button slowly fades into different colors to capture your baby’s attention and soothe them to sleep.<br><br><b>3.<b>❤ 【Smart Baby Cry Sensor】</b> Built-In baby cry sensor to detect baby's crying at night to play music automatically for 30 minutes, helps to calm baby sleep directly. No need for you to get up to calm your baby multiple times a night.<br><br><b>4. <b>❤ 【Rechargeable Lithium Battery】</b> We use a Lithium-ion battery in this baby sleeping aid. It’s rechargeable and lasts longer than disposable batteries. Just plug the USB cable when power has run out.<br><br><b>5.<b>❤ 【Adjustable Volume & Brightness Levels】</b> - Change the volume of the sound and the brightness of the night light. Your little one will love how the star projector changes color on the wall or ceiling!<br>