Feature 13 Speed Modes: This necklace fan provides 3 speed modes, delivering different wind speed in different environment. 2USB Charging: This mini desk fan adopts 2000mAh battery and it supports USB charging, more convenient to use. 3Adjustable Lanyard: This travel fan comes with an adjustable lanyard, and it can be used as desk fan or handheld fan as well. 4Strong Wind: This handheld fan adopts reliable motor that ensure strong wind power in low noise. 5Wide Application: This portable USB fan with ergonomic design is suitable for home, office and travel.Item Type: Necklace FanMaterial: ABS, Electronic ComponentsBattery: Inbuilt Lithium Battery 2000mAhRated Power: 1.2 to 5WRated Input: DC5V/1AUse Time After Fully Charged: 2.5 to 6 HoursCharging Time: About 3 HoursCharging Display: Red Indicator is on When Charging Begins, and the Light is off When Charging is DoneMotor Speed: 2760 to 4000RPMProduct Size:117 x 82 x 43mm/4.6 x 3.2 x 1.7in ( Manual Measurement, Slight Error May Exist ) Package List:1 xNecklace Fan1 x Lanyard1 x USB Cable