2) Hanging around your neck and keep pressing the button for 3 seconds to on/offMaterial: ABS,siliconeCharging:USBItem size: 22x21x7cmDual wind head: The portable fan has two wind head, can feel more powerful airflow, you can wear it on your neck and also can put it on the desktop.High quality material: Made of material, ABS and silicone, and .Installation: neckband, portable3 adjustable speed level: Low, medium and high speed level. You could adjust appropriate fan speed by pressing the power button repeatedly.1 x Hand Fancamping, climbing, fishing, golf and so on.1) It is better to tie up your hair before use the mini personal fan.1 x USB Charger2) Recharge the fan when it cannot reach the 3rd speed or cannot be turned off.1) Please charge it before use at the first time.Hand- design: This fan is design as a headphone to your hands anywhere.Hanging around your neck and take it everywhere.3) Press button repeatedly to change the wind speed, Low/Medium/Strong.Hour of use: 2 hoursMultifunctional: for personal cooling at outdoor activities, such as camping, picnic, sports meet, trips, sports, soccer and baseball,Battery:1200mah