Introducing the LogicMark 35917 Rechargeable Li-Ion Special Pendant Batteries, designed specifically for your LG-35917 devices. This convenient 2-pack features advanced Lithium Ion (Li-Ion) technology, ensuring optimal performance and usability. With a reliable 3.6V DC output, these batteries power your multipurpose devices safely and efficiently. They provide a perfect fit, making replacements hassle-free. Don't let expired batteries hold you back; keep your devices running smoothly with these dependable replacements. Upgrade your power solution today and enjoy peace of mind with every use!