The battery for Sony MDR-HW700DS and similar models is a high-quality lithium-polymer battery specifically designed for use in Sony devices. Weighing only 15 grams, this battery is lightweight yet powerful, making it an ideal choice for mobile applications. The device-specific dimensions ensure a perfect fit in the corresponding devices, guaranteeing optimal performance and safety. The battery falls under the category of device batteries and meets the necessary safety standards, including UN number 3480, which is relevant for lithium batteries. This battery is a practical solution for anyone needing a reliable power source for their Sony devices. It is sold as a single unit, making it perfect for personal use or as a replacement battery. The use of lithium-polymer technology provides high energy density and a long lifespan, significantly enhancing the user experience.