XPR Series XPR3000, XPR3000e, XPR3300, XPR3300e, XPR3500, XPR3500e. MTP Series MTP3100, MTP3150, MTP3200, MTP3250, MTP3500, MTP3550. Compatible with the following Motorola Radios. Exceptionally soft ear padding with grippy skin friendly texture.