The Fire Cam lithium-ion polymer rechargeable batteries give you up to 105 minutes of use. The Extended Sound Cap is for customers that have a older Fire Cam 1080 battery (sold in Fire Cam 1080 cameras prior to 2015). This set comes with 2 extended 3.7 V lithium-ion polymer batteries and an extended sound cap.
The Fire Cam Extended Batteries are helmet cam batteries that are compatible with the Fire Cam 1080, Fire Cam 1080 WIFI, and Fire Cam 4K Fire Helmet Cameras. Our rechargeable lithium-ion polymer batteries provide you with up to 105 minutes of use.