MINI BATTERY-OPERATED FAN: Cool off when you’re at home, work or outdoors with Treva by O2COOL's 5-Inch Battery-Operated Portable Fan. This compact fan won’t take up much space and features a convenient folding design for easy storage and transport. Its perfect for dorm rooms, hotel stays, cruise ship travel and summer camp! DURABLE CONSTRUCTION: To provide long-lasting strength and use, this personal fan is expertly crafted using durable plastic construction with a patented fan blade design which extends the battery life while maximizing airflow. The fan tilts and provides adjustable, directional personal airflow and cooling. TWO-SPEED OPERATION: To accommodate your needs, the fan features high and low speeds. It fan boasts a quiet operation on both settings to keep you cool while making minimal noise so you can work, read or relax without any distractions. Runs up to 55hrs. EASY TO USE: The fan runs on two D batteries (not included) Made of durable plastic