Vest only. No battery pack

【Premium Fleece Heated Vest & Slim Fit Design】Crafted from ultra-soft fleece lining, featuring a stand-collar and slim fit design for ultimate comfort and breathability – all while enjoying unrestricted movement, the waist design will show your body curve better. NOTE: The heated vest has a close fit, especially at the waist, so it may feel smaller than your usual size, but this snug fit ensures better warmth from the heated vest.

【Dual Controls & 3 Heating Levels】Our unique dual-switch design allows for separate operation of distinct heating zones. Featuring 3 heating levels (Low, Medium, High) with just a simple press of the button

【Easy Care and Safety】 Built-in sensors ensure steady temperature control and prevent the heating elements from overheating, providing protection against short circuits. The vest supports both machine and hand washing. Please remember to remove the battery before washing and avoid dry cleaning and ironing