The white noise machine features 8 different noise effects. They can be played individually or together, allowing you to your own sound combinations to suit your preference. Cozy night light modes: The upper soft light projects from the outlet together with the mist to create a flamelike romantic atmosphere, while the underneath warm night light provides extra warmth. When combined with background noise, this setup offers a pleasant companion for sleeping and working. Aromatherapy diffuser: Equipped with a 200 ml water tank, the diffuser can run up to 8 hours of continuous use. You can add your favorite essential oil to enhance the ambience. Please note: do not fill beyond the max level line. The 8 sound effects are: Sleeping Music, Bowl Healing, Wave & Seagulls, Bonfire, Creek, Frog and Bird Singing. Use scenarios: Bedroom sleep routine: run a soothing combination of sounds with the mist and ambient light to help you fall asleep more easily. Focus and study: use the noise options to block distractions while the warm light creates a calm, comfortable workspace. Relaxation and unwinding: diffuse essential oils and play gentle nature sounds to create a peaceful atmosphere for meditation or reading.