I received this as a gift but am selling it because I don't use it. Operation has been confirmed. I will include batteries for the remote control when I ship it. It's almost new and unused, but please understand that it is a used item before purchasing. 【10 Kinds of Conversion Modes & Speaker Included / Multiple Music Playback Modes】 Can be used as a night light, music player, atmosphere light, and relaxation item. There are 4 base colors and 6 ombre colors that can be adjusted and combined to your liking. It can be used as a music player with the built-in speaker. The star projector light supports various music playback modes, allowing you to play music from your smartphone or other devices via Bluetooth connection, or by inserting a USB memory stick or card reader. 【With Remote Control & Timer Function】 Remote operation is also possible with the included remote control (when using the remote control, point it towards the infrared signal receiving area). Star light and laser on/off, color combinations, brightness adjustment, volume adjustment, speed adjustment, song selection, mode change, and timer settings. As a night light, it has a timer function, allowing you to select 1 hour or 2 hours, and it will turn off after 4 hours if not set. [The remote control uses AAA batteries (batteries sold separately)] 【Widely Useful】 It's great for use as a bedside lamp, sleep aid toy, starry sky light, night light, galaxy light, planetarium for home use, projection light, party light, mood light, and background light for live broadcasts, or as an interior light for your room. It's also great for use as a decorative light for children sleeping alone, parties, drinking parties, family karaoke, school festivals, and other occasions. Planetarium with Speaker Projector Light Timer Function Main Unit & Remote Control Operation Bedside Lamp Sleep Aid Bluetooth & USB Memory Music Playback Music Mode Sea Surface Projection Light Starry Sky Star Light Relaxation Item Constellation Projection Lamp Indoor Interior Light Galaxy Galaxy Light Present Birthday Type-C Japanese Instruction Manual #Planetarium #Projector #Speaker #Light #Present