【 Aromatherapy 】- This mood light diffuses natural essential oil blends at the touch of a button. This light is perfect for creating a calming and relaxing environment in your home. 【 Colour Changing 】- Featuring a timer function and LED colour changing lights. Choose from a slow fade, continuous change, or a static colour. Add scent and moisture to the air with this ambient USB plug in diffuser. 【 Easy to Use 】- Simply plug in with the USB cable, fill the water tank to the maximum capacity (70ML) and add 2-3 drops of essential oils (not included) to promote a sense of relaxation. 【 Waterless Auto-Off Protection 】- The diffuser is equipped with multiple time setting modes (0.5Hr, 1Hr, 2Hr). It will automatically stop working when water is running out. MEASUREMENTS - Width 7.5cm x Height 12.9cm x Depth 7.5cm.