Delivered yesterday's and the battery was faulty. it will work if plugged into wall socket but no matter how long you put it there the battery won't charge. LED indicator was not even blinking. I put it for charging for around 3 hours and was still not switching on. I saw lot of review where battery received is faulty with the device. Have asked for replacement yesterday itself. Hope the replacement will work fine. will update the comment once I receive the replacement.

update: 22-10-2018

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good quality genuine product. have 2hrs recording battery life with 1080p with 60fps. worth buying.