Here is a device that lets you handle your phone / action cam like a pro outdoors. FatBat 2 is an external battery and power handle for your smart devices. You can mount a camera with a microphone, light, or other accessories to improve the quality of your videos. The battery lasts over 10 hours.
FatBat 2 is compatible with GoPro cams, smartphones, and other small action cameras. The dual universal mount supports your favorite photography gear. FatBat is expected to start shipping in July.