Two cold-weather batteries + a dual charger. Includes a Dual Charger that lets you charge two GoPro batteries simultaneously, plus two Enduro batteries that you can use as replacements or spares for HERO12 Black or HERO11 Black. They can also be used with HERO10 Black to improve cold weather performance while extending recording times in moderate temperatures. Product Details Includes 2 Enduro Rechargeable Batteries, Dual Battery Charger and USB-C cable Advanced 1720mAh lithium-ion battery that can be used as a replacement or spare for the one that came inbox with HERO12 Black or HERO11 Black Can be used to enhance HERO10 Black performance over the standard GoPro battery Increases recording time with HERO10 Black by as much as 40%^2 Dramatically improves cold-weather performance over standard GoPro batteries in temperatures down to 14AdegF (-10AdegC) Up to 13% faster charging rate than standard GoPro batteries Optimizes charging so you&&';;ll get a fully charged battery as quickly as possible Charges via USB port; for charging up to 38% faster2, use with the optional GoPro Supercharger Dual LED lights display charging status of both batteries Works with Enduro and standard GoPro batteries Warning: Only use GoPro batteries with the charger. Don&&';;t use batteries that have been damaged. Follow all warnings and instructions in the camera user manual. This product contains Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to P65Warnings.ca.gov 1Performance is based on theoretical calculations at a room temperature of 77Adeg F. Charging time may vary based on charging conditions. 2Result based on testing with HERO10 Black recording 4K120 video at a temperature of 77AdegF (25AdegC).