The Removu P1 turn your GoPro LCD Backpack into a wrist worn live viewer and remote for the Hero 3, 3+ and 4. Maintain all the features of the BacPack while it’s on your wrist. Take video or photos, change settings, time lapse and more. The Removu P1 has a waterproof housing for use with all water sports. Waterproof up to 3 feet for 60 minutes. The Removu P1 has a rechargeable internal battery which lasts up to 3 hours and charges via the included USB Wire.