Dual Charger: Optimizes charging so you’ll get a fully charged battery as quickly as possible. Conveniently charges via USB port. Dual LED lights display charging status of both batteries. Enduro: 1600mAh lithium-ion battery boosts camera performance over standard GoPro battery across a wide temperature range. Improves cold-weather performance in temperatures down to 14°F (-10°C). Increases recording time with an average 5.6% improvement when using high- performance settings. What's Included: Dual Charger for MAX, Enduro for MAX (Longer Lasting + Wide Temperature Range Battery), USB-C Cable 1.5ft (0.45m) Compatibility: GoPro MAX