These Sony 3D rechargeable glasses model TDG-BR250 are designed for use with Sony Bravia TVs. The glasses are in good used condition and come with a bag for storage. They are active 3D glasses and are suitable for use with Sony Bravia TVs. With a quantity of 4 available, these black glasses offer a comfortable and immersive 3D viewing experience. Made in China, each pair weighs 70g and is a compatible accessory for enhancing your TV viewing experience.