Now portable, sustainable hydrogen power for handheld electronics is possible. Quickly and safely recharge your phone, tablet, GPS systems, hi-definition personal cameras, MP3 players and much more. Use the USB charger to restore power to USB fans, USB lights and MP3 and smartphone USB speakers. MiniPak is the perfect off-grid solution if you’re going camping, hiking or just if you know you’re going to be without access to mains power for a while. Plus, it’s a great little gadget to have around in case of power failures or other situations where emergency backup power might be needed.MiniPak is the new fuel-cell system to get power always within reach! Pocket-side fuel cell system with USB outlet to charge little electronic devices. Ideal for cellphones, MP3/MP4, gaming devices, GPS, cameras, little LCD, little light system.