K head 2 pin; compatible with Baofeng Samcom Kenwood Arcshell Retevis RT22 RT21 H-777 RT68 RT86 EZTalk 2 A1 C2 and more; can't compatible with Midland or Motorola walkie talkies. Adjustable boom mic; the boom mic on the walkie-talkie headset can be adjusted to the mouth for clear voice transmission.
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