-> Beautiful & Romantic - Cosmos Star Projector Lamp makes out the universe back home and gives you a piece of the sky with colorful, without need for hard to find the field,rotating its base, there will be different colorful space, find the constellation that you belong to it.-> Multifunction - Perfect for decorating in wedding, birthday, parties, anniversary celebration, baby nursery kids bedroom living room and exhibition illuminates for comfortable, calming and romantic nightlight effect.-> Keep Your Eyes - Night Projector Lamp has 4 led beads of warm light, blue light, green light, red light with soft light for eyes when open in night to protect people's eye.-> 3 Mode - Press the A button for steady light, press the B button to switch the steady color of the light and/or to make it flashing etc, C to turn on the rotation. Power pressure of 4 x AAA battery (Not included) or USB cable.-> 100% Satisfaction - OJA offers 100% money back, if you are not 100% complete satisfaction.Do you want to sleep under a starry sky ? OJA NightLight Project Help you! Features: 1. Great for romantic night lamp and decoration light use.Perfect for decorating wedding, birthday, parties and so on. 2. Best for home, bedroom, children rooms or other place to make the romantic and relaxing effect with soft light. 3. 2 ways to power by 4 x AAA battery (Not Included) or USB cable. 4. Energy power saving,LongLifespan and environmental friendly led moon and star light. 5. The removable light covers has 4 patterns: lovely animal patterns,glaring and colorful moon ang stars patterns and so on. 6. As a kind of best gift to send to lover, girl friends, children, family member or yourself. How to use 3 modes: A mode: Press A button for steady light. B mode: B button to switch the steady color of the light or make it flashing etc. C mode: It is to the rotary switch (rotate or do not rotate freely for select) control. 3 ways to turn it on: 1. use 4pcs 1.5V batteries to turn on it. 2. we can use the USB line to connect the computer to turn on it. 3. we can use the USB line to connect the "USB Converter",Then connect the power to turn on it. Specifications: Material: Plastic Voltage: 5V Power Source: DC 5V or 4x AAA Batteries Color: Purple Switch Type: 3 Push-Button Light Source: 4 LED Bulbs The best projection distance: 1.5 - 3 meters Package Included: 1 x LED Night Light 1 x USB Cable 1 x Instruction Manual