Treva 10-Inch Portable Desktop Battery Fan, Powered by Battery and/or AC Adapter Energy-Efficient Design: TREVA's patented fan blade design extends battery life while maximizing airflow to supply optimal comfort and convenience. Stay cooler and more comfortable on sweltering days for longer periods of time. An AC Adapter is included supporting your need for extended periods of use. Portable, Two-Speed Fan: The powerful two-speed, 10-inch blade can be set on either high or low speed to accommodate your needs. This fan features a compact and lightweight design for easy transport and storage, with a built-in carry handle for easy portability. This allows you to enjoy cool comfort in a hot office, in a dorm or at school, summer camp, vacation, cruise ships or in your home! Battery-Operated Convenience: No Power, No Problem! TREVA's battery operated fans are perfect for staying cool when your power goes out. The fan runs on six D-cell batteries (not included) with an approximate run time of 53 hours on low and 20 hours on high. Enjoy the cool, refreshing breeze any place you go, or when your faced with power interruptions due to hurricanes, and inclement weather. Features BATTERY-OPERATED POWERFUL PORTABLE FAN : With Treva?s 10" Battery-Operated Portable Fan, you can cool off wherever you are. Perfectly sized, it is easy to transport with its convenient built-in handle DURABLE CONSTRUCTION: This portable fan is durably crafted using sturdy plastic construction for long-lasting use with a patented fan blade design which extends battery life while maximizing airflow TWO-SPEED OPERATION: Featuring a powerful 10-inch blade, this fan offers high and low speeds to accommodate your needs. Both settings deliver refreshing air with minimal noise to prevent distractions EASY TO USE: Position fan face down, slide out the battery door and insert 6 D batteries following (+/-) marks. To operate fan using AC power (120-240 VAC, 50-60 Hz), use supplied adapter only DUAL POWER SOURCES: For added convenience, the fan runs on 6 D batteries (not included) or plug it in using the included adapter. Inserting the adapter disconnects the batteries from the circuit Included Components: Fan and Adapter Mounting Type: Stand USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.