Celestron Elements TrekCel 3300 Waterproof Backpack - Durable Hiking & Travel Gear for Outdoor Adventures, Camping, and Astronomy Equipment Storage

Keep your electronic devices charged and ready with the TrekCel 3300. The large 3300 mAh lithium ion battery delivers a full charge to most smartphones, iPhones, iPods and MP3 players. You can use TrekCel 3300 with all your family’s devices thanks to the variety of included adapters: Mini USB, Micro USB, 30-pin iPhone, Samsung D808, Nokia 2.0, Nokia 3.5, and Sony Ericsson K750.

TrekCel 3300 goes beyond most portable power packs with a powerful 100-lumen LED flashlight. The bright white LEDs have four modes—low light, bright light, flashing light, and SOS—making TrekCel 3300 great for unexpected emergencies.