Mistakes Happen. We've Got You Covered. With Geekria SureFit, we make sure you have complete peace of mind when shopping for any earpad we offer. If you made a mistake matching your headphones type, or the earpads didn't fit, please contact us. Compatible Headphones: - Compatible with JBL JR300, JR300BT, T450BT, T500BT, Tune 500, Tune 500BT, Tune 510BT earpads. Note: - Headphones replacement ear pad only, device is not included. Package Includes: - One set of ear cushions. Made by Geekria.