The mini fans are USB handheld fans that can operate for three to four hours at a stretch once fully charged. They come with a simple power button, thus making it easier for anyone including children to operate the fan. The USB fan comes with a detachable USB charger for quick charging. Rechargeable Portable and handy Good fan speed Nestip: The mini USB fan can be used as an accent piece in a living room. Size: 14 cm H x 6.5 cm D included: 1 fan, 1 USB cord,