Widely use; standard K head 2 pin for most walkie-talkies; compatible with Retevis H-777 RT21 RT22 RT68 Baofeng BF-888S UV-5R UV-82 Kenwood TK-3402 Arcshell AR-5 two way radios and more. G shape earpiece; with g ring design for stay in ears well without falling off; its comfortable hygienic and lightweight and works on right or left ear.
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