Features:Brand new and high qualityIt enables you to talk and listen without having to remove the radio from your beltHas a remote microphone with push to talk button you can clip anywhereJust clip the speaker mic where convenient and use it to listen and transmitThe speaker mic comes with a PTT buttonPerfect for security/surveillence purposesBest companion for outdoor communications with your HAM friends in war game， paintball， training， hunting， motorcyclesTwo-pin standard diameter: Ear 3.5mm stereo (top pin). Mic 2.5mm stereo (bottom pin)3.5mm Headphone jack when discretion is required， cutting out the speakerCompatible Models: Remote MINI Speaker Mic that works flawlessly with most KENWOOD series radios such as BAOFENG，PUXING，LINTON，QUANSHENG，WOUXUN，WEIERWEI handheld Radio， etc.Size: 7cm x 6.5cm x 2.5cm - 2.75inch x 2.55inch x 0.98inchPackage Included:1 x Speaker MicrophoneNO Retail Box. Packed Safely in Bubble Bag.