About this item 【BPA-Free】: The aromatherapy essential oil diffuser uses high-frequency ultrasonic technology to convert water and essential oil into a fine mist that disperses evenly into the air, humidifying the air, soothing emotions, relieving stress, and aiding sleep. BPA-free and made of safe PP + ABS material, giving you greater peace of mind when using the diffuser. 【7 Changing LED Lights】: The electric essential oil diffuser is equipped with 7 color lights (bright light or dim light, frosted color or full cycle). Adjust your favorite color to suit your mood. The light is soft, providing a romantic atmosphere. The ambiance is delightful. 【4 Timer Settings】: The aromatherapy essential oil diffuser has four timer modes: 1 hour/3 hours/6 hours/continuous operation. Simply add 150 ml of water and 3 to 5 drops of your favorite essential oil for up to 6 to 10 hours of aromatic coverage. The homemade essential oil diffuser automatically shuts off when there is no water. There is no need to worry about damaging the device itself or endangering users. 【Super Quiet】: Adopting ultrasonic technology, our machine operates silently, generating vapor without any heat. The essential oil diffuser covers 15 to 20 square meters. Perfect for bedrooms, offices, studies, living rooms, bathrooms, yoga studios, spas, conference rooms, maternity and baby rooms, etc. 【Unique and compact design and perfect gift】: Delicate and unique design, the electric essential oil diffuser is the best gift choice for Christmas, Thanksgiving, Valentine's Day, a birthday, family, friends, teachers, relatives, etc.