7 Color LED Mood Choose from seven color options to create a calming ambience for relaxation or meditation, enhancing mood and the look of your space. 130 ml Compact Water Tank 130 ml water tank provides longer humidity output while keeping a compact footprint of 140 x 65 x 73.5 mm for easy placement on a nightstand or shelf. WhisperQuiet Operation Operates at less than 36 dB, supporting undisturbed sleep and suitability for nurseries while delivering steady humidification through the night. USB Powered Convenience Powered by a standard USB connection (5V2A), enabling flexible placement and easy use with power banks, laptops, or wall adapters during travel. Use Scenarios In the bedroom to support sleep and create a calming atmosphere with ambient lighting. In a nursery to maintain comfortable humidity without adding noise. While traveling or in small spaces, powered by a power bank, laptop, or wall adapter for portable use.