Compatible with two way eadio earpiece of Motorola, Kenwood, Hytera, Icom, Arcshell, Harris, EFJonson, Relm, Miland, Uniden, Tait, Talkabout, Baofeng and more. Earpiece acoustic tube made of soft PU material, very soft and comfortable. Perfect size, the tightness is very good, delivers clear sound even in noisy places, showing a high-quality sound experience. Fins earmolds soft comfortable anti-slip, 24 hour comfort, no pain, pollution-free, re-usable, can wash with water, lightweight,really comfortable.