1、Waist Fan and Necklace Fan: You can use the included strap to clip this waist fan to your waist or pants, or wear it as a necklace for cooling. The dual clips ensure stable and comfortable usage. 2、Super Strong Airflow: This waist fan is equipped with dual air outlets , which can provide strong wind up to 10m/s, 40% stronger than other portable waist clip fans. Upgraded technology prevents overheating even with prolonged use. 3、4 Speeds: 4 wind speeds adjustable, d1, d2, d3, d4, with the highest speed being d4. This new hanging waist fan is the best choice for outdoor workers in hot environment. Short press the power button to display the device's battery level, then press the fan speed button to start the fan and adjust the speed. 4、Forward Reverse Function: This waist fan can blow air in 2 directions, upwards and downwards. When the fan is running, pressing the forward reverse button will stop the fan, reverse its direction, and pressing it again will restore it to forward mode. Reverse speeds are denoted as ‑d1, ‑d2, ‑d3, ‑d4, with ‑d4 being the highest. 5、Type C Charging: Compatible with 5V2A and above chargers, including fast chargers for various devices. Full charge indicated by non‑blinking fourth battery level on display screen. If using solar power to charge the device, it is important to avoid overcharging (remove immediately after fully charged) to prevent damage to the battery. Item Type: Portable Waist Clip Fan Material: ABS, Metal Battery Type: Lithium Battery (Built in Battery) 1 x Portable Waist Clip Fan 1 x Hanging Cord 1 x Charging Cable