Cool air in your hand, on a desk or hanging at your neck: a folding USB fan with five speeds and a battery readout on the front. Three ways to use it: Hold it, stand it on a desk or hang it from the lanyard, so one fan covers the commute, the office and the garden. Twelve hours or more per charge: A full charge lasts through a long day out, so it does not give up halfway through a festival or a flight. Brushless motor: Runs at 45 to 50 dB, roughly the level of a quiet conversation, so it can sit on a desk without cutting across a call. Folds flat: At 18.8 cm long and under 5 cm thick folded, it slides into a bag rather than taking up a pocket of its own. Battery readout: A digital display shows the charge level, so you know when to top it up before heading out. Five speeds: From a light breeze at a desk to a stronger flow on a hot platform. Specifications: Type: folding USB fan for handheld, desktop or worn use Dimensions: 18.8 cm by 9 cm by 4.65 cm Weight: 223 g Speed settings: 5 Run time: 12 hours or more on a full charge Motor: brushless Noise: 45 to 50 dB Rated voltage: 5 V Rated power: 2.5 W Battery: built in rechargeable, 1200 mAh or higher Charging: USB Display: digital battery level Included: aroma pad and lanyard Model reference: DS18 Charge it fully the night before a hot day and clip it to your bag on the way out.