BaoFeng Dual Push-To-Talk (PTT) Speaker Mic for UV-82 Series - Backward Compatible Genuine BaoFeng Tech Dual PTT Speaker / Mic (Only Sold by BaofengTech - insure BaofengTech is your selected distributor to guarantee accuracy in receiving what is described) Built in Microphone and Speaker - with spring clip on the backside. Communicate with ease with the two easily accessible buttons. Backward Compatible with all BaoFeng Models The upper / top button will access the upper frequency on the UV-82 display, while the lower / side key button will access the lower frequency on the UV-82 display Helpful BaoFeng Guides and Programming Tips at Miklor.com