Product material: ABSSpecification requirements: usb 5V 2WPacking size: 108*138*40mmProduct size: 76*76*37mmSingle weight: 205gFeatures:1. The product is suitable for use in vehicles, homes, offices, etc.2. It helps to resolve depression, dizziness and poor spirits.3. Car portable aroma diffuser, which can be carried with you. Precautions:1. The voltage of this product is DC-5V, please ensure that the working power supply is 5V DC power supply.2. If there is an abnormal noise, please charge it after turning off the machine.3. It is better to add 2-3 drops of essential oil when the product is working.4. USB power supply 5V, all kinds of mobile phone charging heads, power banks, computers, car chargers can be used.5. This product is an anhydrous aroma diffuser, which is convenient to carry and can be used anytime and anywhere.