POFENAL Walkie Talkie Radio Listen Only Earpiece Headset with Clear Acoustic Tube Retaining Clip (2.5mm pin, 1 pcs) 2.5mm pin Size:2.5mm pin kindly upgrade the apps to

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POFENAL Walkie Talkie Radio Listen Only Earpiece Headset with Clear Acoustic Tube Retaining Clip (2.5mm pin, 1 pcs) 2.5mm pin Size:2.5mm pin kindly upgrade the apps toPOFENAL Walkie Talkie Radio Listen Only Earpiece Headset with Clear Acoustic Tube Retaining Clip (2. 5mm pin, 1 pcs) Applicable occasions: law enforcement officers, firefighters, first responders, sports, amusement parks and other professionals who hold microphones on their shoulders or clip to their shirts. If your microphone has a 2. 5mm jack, You can plug into it, and you can listen to the broadcast safely without being interfered by others nearby.