Provide Better Voice Transmission:Baofeng AR152 Tactical Speaker Mic has high quality louder speaker and microphone units provide clear audio communication. PU Material Cable:5mm diameter wire, better ductility;Can put the walkie-talkie behind your backpack and talk with your hand microphone, which can reduce the risk of radio transmission and increase the distance to your head. With Volume adjustment button: The difference between this speaker microphone and the common speaker mic is that it can adjust the volume,you can adjust the level of the sound on the hand microphone, which is more convenient to use. 3.5 mm jack Microphone headphone to attach earpiece for discreet noisy communicationssuch as patrol duty, large team activities, business activities and implement covert missions etc ,it can be a best choice accessory. Compatible Models:Most Wanted Among Baofeng AR-152 UV-5R,UV-82, BF-888S, BF-F8+, UV-S9 PLUS, BF-F9 V2+, GT-3TP, etcAccessories.