The size didn't fit, so I haven't used it much. Model number: SV12 Ladies' L size Includes adapter and battery No box, warranty, or instruction manual Available for immediate purchase 【Functional Material】 The Speed Heat vest uses lightweight and highly insulating material, allowing you to stay comfortable even in cold weather. 【Stylish Design】 The simple black quilted design is easy to match with any outfit and is suitable for sports or casual occasions. 【Convenient Accessories】 An instruction manual is included, providing detailed explanations of how to use and care for the product. - Color: Black - Style: Vest - Brand: Speed Heat - Instruction Manual: None - Design: Quilted Thank you for viewing.