1、Stable speed, can reduce noise caused by operation, can also be quiet and energy saving, and reduce power consumption. 2、Multi‑angle adjustment, press head shake button on the base, left and right wide area blowing 80°, and manually adjust wind direction angle 40° up and down. 3、Low noise design, more suitable for your work or sleep without interruption, quieter and more powerful. 4、It can be connected to PC, notebook, mobile power supply, adapter and other devices for charging, and it also supports blowing while charging. 5、Suitable for many places, can be used in the home, car, office, desk use. Item Type: Shaking Head Fans Material: ABS+Silicone Function: Mini fan, can be used at home, car, office, desk. Size: Approx. 12 x 12 x 18cm/4.7 x 4.7 x 7.1in (Manual measurement, there may be slight errors) Battery Model: 2x18650 (delivered without batteries) Number of Gears: 3 Gears Charging Time: 3.5 Hours Working Time: About 4-14 hours (Depending on the size of the gear) Rotation Angle: 80° left and right / 40° up and down Charging Method: USB data cable Power Supply Mode: 1. 2 Lithium batteries can be used for power supply, or one lithium battery can be used for power supply (delivered without batteries) 2. It can be charged with an external power supply, or it can be removed directly from the battery, and used with a USB cable 1 x Shaking Head Fan 1 x USB Cable