Macna Men's Cloud Heated Vest Features: Bluetooth Control Connectivity(app) Dual Power Technology Battery Life Indicator Electrically heated Heatable with 7.4V or 12V battery Specifications: Colors: Black Comfort: Electrically heated Functionality: Bluetooth Connectivity, Battery Life Indicator Material: Textile Style: Touring - Adventure Suitable For: Gentlemen Technology: Dual Power Weather Type: Winter Technical: Examination: CE Power Supplies: Batteries and charger not included Macna Men's Cloud Heated Vest