Utama Spice's Ayung Rechargeable Wireless Spray Diffuser offers the natural and inviting scent of essential oils with the ultimate convenience and ease of use. No heat, no water, no power cords. Thanks to its battery power, aromatherapy and the use of essential oils are taken to a new level. You can carry and enjoy your favorite scent anytime, anywhere, without any hassle. Whether in the car, in a yoga session, or on a travel destination, you can enjoy the pure scent to the fullest in any place and situation. Easy to carry: Cordless design, can be used anywhere Long Runtime: Battery holds charge for up to 16 hours depending on usage Durability: Sturdy construction for longevity The custom-designed glass reservoir is securely attached to the diffuser base and comes with a snug glass cap. It works efficiently without waste or spills. It also features 3 adjustable volume controls (low, medium, and high) and convenient automatic use cycles. It is easy and safe to use because it is turned on for 2 minutes, off for 1 minute, and automatically shuts off after 2 hours.