GiftU corporate gift search enginee, provides customised promotion umbrella gift ideas, welcome small orders, professional solution, quality guaranteed 
The domestic original black technology, unscrew the top umbrella cap, pour water in, the ice water cooling effect is better. Spray cooling, humidification function, double-click the umbrella handle button switch, after the spray function is turned on, the umbrella will drop by 7-12°C, bringing a clear cool feeling. It can be used for emergency charging of mobile phones.
Battery capacity: 2800 mAh