Rotating Music Projector Children Night Light Birthday Christmas Gift Bluetooth Galaxy Projection Sleep Lamp Bedroom Decoration. It is the best gift!!! For birthday, Christmas, New year, Children #x27;s day valentine #x27;s day etc. Note(important): Please tear off the protective film on the film to make the projection pattern clearer. The difference of 3 types projector lamp: 1.Bt speaker: built in bluetooth speaker, Built in battery, Rechargeable, Music box(8 songs) ,With remote controller, With usb cable, With 10 pcs films.2.Music box: without bluetooth speaker, Built in battery, Rechargeable, Music box(8 songs) , With remote controller, With usb cable, With 6 pcs films.3.No music usb plug: without bluetooth speaker, Not chargeable, Without music box, With usb cable, With 3 pcs films. Button function: 1. Quot;power button(light button) quot; function:long pre the quot;power button quot; for 2 seconds to turn on/off the led light. Lightly pre the quot;power button quot; to switch the light mode (white/yellow/blue/colorful gradient/breathing mode),2. Quot;rotation button quot; function:lightly pre the quot;rotation button quot; to turn on/off the motor rotation, Long pre the quot;rotation button quot; to timing, The timing is 30 minutes, And it will automatically shut down after 30 minutes.3. Quot;music button quot; function:long pre the quot;music button quot; to turn on/off the music box (bluetooth), Lightly pre the quot;music button quot; to switch to next song. Warm tips: 1. No battery type (plug-in type), Need to be connected to the power to use, No lithium battery, No music box, No remote controller, Music button is invalid.2. When the battery is low, Bluetooth will automatically shut down.3. After bluetooth is disconneted from pairing, It will automatically turn off in 30 minutes. When bluetooth in turned on, Turned off, Connected succefully, And disconned , You will hear the prompt tone. The bt name is quot;181 quot;.4. The bluetooth transmiion distance is 4-10 meters.5. Music box music will be played automatically when bluetooth is not connected.