Magnasonic Portable 7400mAh External Battery Backup Power Bank, 2.1A Fast Charging Dual USB, Ultra Rugged Shockproof, High Capacity Charger for iPhone, iPad, Smartphones, Tablets, Wearables (PB52) Fully charge your electronic devices on the go with a large 7400mAH high-capacity lithium-ion polymer battery made with the same superior quality battery cell technology found in Apple devices Ultra rugged, shock-proof, and drop resistant, this heavy duty design is made with extremely durable materials and can withstand the toughest terrains for any adventure Rapidly charge two electronic devices at the same time with its dual USB 2.1A output thats ready to power you wherever you go Easily gauge how much battery power is left with its easy to read smart LED indicator that also highlights your devices charging status Enjoy outstanding versatility with this power banks ability to charge many devices including iPhone, iPad, Apple Watch, Samsung, Android, HTC, Blackberry and other smartphones, tablets, wearables, digital cameras, Bluetooth speakers, and headsets