The 5-Pack 2-Pin Walkie Talkie Earpiece Mic Acoustic Tube by Xuhal is designed for radio security use, featuring an analog communications protocol and compatibility with the BaoFeng UV-5R model. The earpiece includes a transparent tube, ear plug, and a 2-pin plug for convenience. With a sleek black design and clips for easy attachment, this earpiece is perfect for walkie talkies and two-way radios, offering a secure and discreet communication solution. Made in China, this unit comes in a quantity of 5 individual earpieces.