Model - SFREP7BKMPR. 28dB with filter caps inserted. Comply canal tips (extra pair included). Patented EarLock rings for unparalleled retention. Hypoallergenic soft polymer construction. Detachable lanyard. Can be used as an earpiece for compatible radio communication systems. Color: Black. Size: Medium (1") fits most people and is based on the ear's concha bowl. Includes carry case. Clam packed.