Two Enduro batteries for GoPro. A battery charger is also included. The batteries have been used less than 10 times each, so they are in excellent condition with no swelling. Compatible with HERO9 Black / HERO10 Black / HERO11 Black / HERO12 Black. - Includes 2 Enduro batteries - Advanced 1720mAh lithium-ion battery provides improved camera performance compared to standard GoPro batteries over a wider temperature range. - Maximizes the performance of HERO12 Black, HERO11 Black, HERO10 Black, and HERO9 Black - Compared to previous GoPro cameras and batteries, the HERO11 Black offers up to 38% longer recording times in moderate temperatures. - Longer recording times for both HERO10 Black and HERO9 Black. - Up to 40% longer recording times with HERO10 Black in high-performance settings. - Significantly improved performance in low temperatures down to -10°C for HERO10 Black and HERO9 Black. Included with HERO12 Black and HERO11 Black.