About this item5000mAh SUPER BATTERYDepends on different speeds, it can work up to 26 hours after fully charged(need 3 hrs). So you can enjoy the cool breeze of A Full Day. There is a Battery Level Indicator next to the button to show the remaining battery. Can be quickly recharged in usb charger, like computers, laptops, mobile power,etc.HAND FREE DESIGNUnique wearable Hand free fan was design to free your hands anywhere. Fashionable neck fan style makes you look so cool. You can hang Leipple neck fan around your neck while reading, running and working.ERGONOMIC NECKBAND DESIGNThe neckband is Upgraded to fit the line feature of the humans neck. Soft, light material are used to apply different people's demands. Compared with ordinary usb neckband fans, it is more stable and comfortable when worn on neck, and will not move with body movement :)6 SPEED ADJUSTABLEAdjust an ideal speed according to your preferences. Control one button to shift, 6 speeds can be selected. The first speed is a natural wind mode that blows comfortable air like the wind from mother nature, the rest 5 speeds blows air from low to high.