About this item Compatible withCompatible with Plantronics Voyager Focus UC B825 Binaural, Voyager 4320, Voyager 4310, Voyager Focus 2 UC USB-A, Blackwire 7225, Voyager 4210/4220, BlackWire 5200/C5200/5210/C5210/5220/C5220/7225/C7225, Plantronics BT600 Headset. Please confirm your headset model before purchase. EASY INSTALLINGFirst, remove the original ear pad (removal method: slowly peel off the ear pad along the edge of the earpiece). Package Includes1 Pair of ear pads cover (No foam). Headphone not included. Size: 3.19 x 3.11 x 0.35 inches.