The Third Wave Power mPowerpad2 Lite cable with lanyard has 3300 mAh battery capacity which charges a smartphone 2 to 3 times. Comes with built-in reading light, flashlight and SOS signal. Rugged, water and dust resistant. Optional mPowerPack Battery fits into available cassette slot. 9.5 x7.3 x 0.7 inches, and only 1.1 pounds.