Take your essential oils essentially anywhere with the Energia. With a powerful rechargeable battery, this diffuser can run for up to 3 hours without a power source, Just charge the battery, add water and a few drops of essential oil and take the Energia everywhere you go. Operating Modes: Continuous/ Off Light Modes: Warm White/ Color Rotation/ Fixed/ Off Run Time: Up to 6 hours/ up to 3 hours on battery power Timer Options: N/A Capacity: 50mL Coverage: Up to 400 sq. ft. Power: 5V USB Battery: Lithium Rechargeable Battery Dimensions: 3” x 3” x 6”