About this item These ear cushions are compatible with the Synchros E40BT, E40 BT, S400, S400BT, and T450 Wireless Bluetooth headphones. High quality, best replacement for your headphones, replacing worn-out earpad cushions with easy installation. While ensuring affordable pricing, it also enhances the comfort and durability of the earpads. Made of durable leather and memory foam, the ear pads feature a smooth surface and comfortable touch. The ear-conforming fit is due to firmer memory foam cushioning, which perfectly isolates sound from your environment while enhancing every beat that comes through your headphones. Package Includes: 1 pair of earpads. Theres no need to waste money on a new headset; simply replace the damaged ear covers with these headphone earpads. Dimensions: 5.55 x 4.06 x 0.87 inches.