I-Pix Anodized Aluminum GoPro Hero 3, 3+, 4 Deep Water Housing with External Battery Back for Underwater Video & Photography Anodized aluminum External battery will increase run time to 2.5hrs (LCD on), 3.4hrs (LCD off) to 6hrs on time lapse I-Pix GoH3 full set.... Housing with power bulk head Battery compartment with switch and power indicator Power cable Battery charger Lithium rechargeable Batteries x2 (3400mAh)