This is a w fan Yoga Sirocco neck cooler. I received it as a gift about 3 years ago, but I haven't had many opportunities to use it, so it's new and unused. I opened the box once to check for any scratches, but the box is slightly warped and scuffed, while the main body is clean. Input: DC 5V 1.0A (USB rechargeable) Rechargeable battery (built-in): Nickel-hydrogen storage battery 3.6V, 2000mAh Charging time: Approximately 240 minutes Continuous usage time↓ Rhythm wind - Approximately 350 minutes Gentle breeze - Approximately 650 minutes Weak wind - Approximately 340 minutes Medium wind - Approximately 230 minutes Strong wind - Approximately 130 minutes Size: Approximately w170 d65 h250 mm Weight: Approximately 260g Materials: ABS (main body), silicone rubber, iron (arm) Accessories: USB charging cable, hair tie Storage precautions: When storing for a long period of more than six months, be sure to fully charge the main unit before storing. #Handy fan #Neck cooler #Cooling goods #Heatstroke prevention #Heatstroke measures