Feature:1. WIDE COMPATIBILITY: The battery charger kit is compatible for Osmo Action 3, for Action 4 cameras, and can be interchanged with OEM batteries and chargers.2. FAST TRIPLE CHARGER: The 3 slot charging station allows you to charge 3 batteries at the same time using USB C devices such as laptops, car chargers, wall chargers and mobile power.3. MULTIPLE SAFETY GUARD: The battery charger kit features over charge, over discharge, short circuit, surge, over voltage, and over current guard and is CE, FCC, RoHS certified and manufacturer tested to match OEM products.4. SMART LED LIGHT: When the indicator light turns green, it means the for Osmo action 3, for action 4 extreme battery is fully charged, so you can easily know the charging status.5. PREMIUM MATERIALS: For Action 4 3 channel battery charging station is made of premium plastic and electronic materials, lasting, stable performance and long service life.Specification:Item Type: 3 Port Camera Battery Charging HubMaterial: Plastic, ElectronicsInput: TYPE C 5V 2AOutput: 4.4V 0.7Ax3Applicable Models: for Osmo Action 4, for Action 3.Package List:1 x 3 Channel Quick Charger1 x Type C Power Cable1 x User Manual