The Mobile Warming Bluetooth enabled 7.4-volt Men's Alpine 2.0 Jacket is one of our original designs that's been perfected over the years. Part of our men's heated clothing line, the Alpine is ready for some of the harshest conditions-rain, wind, cold-all the above. Stay dry with our windproof and water-resistant Windshark fabric technology. 3 Heat zones with 4 temperature adjustments are powered by our slim 7.4V rechargeable Lithium-Ion battery, allowing you to customize temperature for any condition. Through the free MW Connect app, you can quickly adjust individual heat levels to your liking. MW Connect app allows you to get real-time updates on battery levels. The Alpine BT Heated Jacket is ready for any weather. Jacket Features: 4-Way Stretch Soft Shell Construction Wind-Shark Protection from Wind, Rain, & Water Sweatsheer Moisture Wicking Mesh Liner Phoslite Reflective for Increased Low Light Visibility Zippered Waterproof & Taped Chest Pocket Zippered Hand-Warmer Pockets Multi-Zone Micro Coil Heating - Left & Right Chest, Upper Back 4volt Powersheer Lithium-Ion Rechargable Battery 4 Adjustable Heat Settings (90° up to 135°) Integrated Waterproof Touch Control Button Bluetooth-Enabled Wireless Control MW Connect Mobile App Compatible available on App Store or Google Play Store Zapsheer Machine Washable Available in SM, MD, LG, XL, 2XL & 3XL Battery Features: Powersheer Rechargeable Lithium-Ion Battery (7.4V 2200mAh) Up to 10 Hours of Power Per Charge (2+ Hours Hi - 10 Hours Low) USB Cable included Charge Time 3-4 hours *Charge time is based off using a USB-A wall charger that delivers [email protected] Includes: (1) Alpine 2.0 Heated Jacket (1) Powersheer Rechargable Lithium-Ion Battery (7.4v 2200mAh) - Model MCWB74V02221 (1) Micro USB Charging Cable Replacement batteries: Battery SKU: MW74V040 - 7.4v Powersheer XL Plus Rechargeable Battery (7.4v 4000mAh) Fieldsheer Mobile Warming Men's Alpine 2.0 Heated Jacket