☆ The earpiece is made of durable PU material ☆ With this radio earpiece that includes a state-of-the-art, in-line PTT microphone, it’s easier than ever to use your radio device for hands-free communication – No distortion, attenuation or frequency jumps ☆ This surveillance earpiece speaker uses the same as the headphone speaker, excellent audio quality ☆ Earbud Adopts the soft silicone, comfortable enough to forget it's there ☆ This 2 way radio earpiece compatible with leading radio headset brands Kenwood, Puxing, Wouxun, Baofeng. DON'T WORK FOR Motorola and Midland Radio