The product is a lot of two DR02P R73TC batteries designed for Dell Latitude laptops, specifically models in the 3340, 3440, 3540, 3480, 3580, 5340, 5540, and 5440 series. These black batteries are Li-Ion type with a capacity of 54Wh and a voltage of 11.4V. They are compatible with Dell products and come with a 1-year manufacturer warranty. Made in China, these batteries are suitable for Dell Latitude laptops and are a reliable replacement for your old or worn-out batteries.