• Built-in A Mini Speaker. The item comes with an audio cable, an USB cable and an adapter. Simply plug in a cell phone, MP3 or other device to play music, can be used as a soothing sound machine for kids, teen boys, teen girls, adults and seniors.
• Built-in a TF Card Slot. You can download your favorite music in a TF card and plug the card into the projector to play music, convenient and simplify.
• Auto Turn Off Timer. There are 3 options of the auto turn off timer - 1 hour / 2 hours / 4 hours, the wave projection lights will automatically turn itself off in the preset time you choose. Yet of course you can also canceled the auto turn off timer function if you prefer it stay projection all night long.
• Easy to Use. It is run on simple sensor buttons, easy to turn it on/off and switch the projection modes by the middle button, adjust the volume by the other 2 buttons, it is simple and easy to use.

7 different projection modes for different situation, you can choose the favorite mode to transform your room into different colorful space through the rotating waves lights, especially great for a family movie night, allow you enjoy the peaceful undersea ambiance at home. The flash mode which 3 colors fast change would be great for an active party. The blue pattern which looks like the beautiful "ocean wave" would be amazing for the Valentine's day or anniversary to create a romantic night for someone you love. It is perfect to decor any theme party such as school activities, family party and so on. Every projection mode will be a different surprise for you, definitely an excellent gift for families and friends.

How to use it:

• 1. Connect the USB adapter.
• 2. Plug into wall adapter.
• 3. PUSH THE POWER BUTTON (the middle one among the five) FOR 2 SECONDS, then it will turn on the lights and music.
• 4. Connect your mp3/phone via audio cable to play your favorite music
• 5. Turn up or turn down the volum with the "+" and "-"

For more operation, please learn more from the user manual