Tenq 20pack Earpiece Headset Mic for Baofeng Uv-5r 666s 777s 888s Two-way Radio Provides excellent durability, reliability and performance in low-profile environment. Clip this hands free earpiece onto your shirt and begin using your radio device to communicate discretely and easily, whether you're in security, retail, or hospitality. Ideal for demanding covert security applications where sound clarity and earpiece durability are of paramount importance. Almost All with a two pin plug, former pin diameter of 3.5 mm and 2.5 mm in diameter after pin, double pin from 8 mm within, 11 mm center distance of 2 pin Notice: If your walkie-talkie type is not in the list above, please see my other items or email us your model number, then, we will help you find one that suits for you