1.Radio Model:Civilian tactical headset to 6-Pin plug walkie talkies U94 type PTT push-to-talk adapter. Compatible with Ailunce HD1 HD2 HA1G and Retevis RT29, RT47, RT47V, RT48, RT82, RT83, RT87, NR30, RB23, RB46, also fits for Motorola GP328Plus GP344, EX500, EX600, hytera HYT TC-780, ect two way radio. 2.Tactical 7.0mm Jack:The PTT adapter fits civilian tactical headset 7mm or 7.1mm plug, nexus TP-120/U-174/U style input headset socket.(please check the headset version before purchasing) Please note: The push-to-talk adapter is civilian wiring which compatible with the commercial wiring civilian version tactical headsets (compatible with civilian version TAC-SKY/Z Tactical/Z-TAC's headset). Not compatible with military-defined version headset. 3.Big PTT Button:With large and sensitive PTT button design, it is easy to handle even if you're wearing thick gloves. Button activated PTT (push to talk) unit, plug and play, easy to install and easy to manipulate. Anti-slip round PTT switch (push-to-talk button), easy to open the microphone and talk with your partners quickly. 4.Rugged Cable & Clip:Equipped with a metal clip on the back, the PTT adapter can be easily fixed to your clothes, making it convenient to match with your undershirt or belt. Made of premiun ABS, upgraded reinforced ptt cable has high flexibility and toughness, anti-tensile and anti-bending, not easy to break but also waterproof and moisture-proof. Lead length is long enough and allows for placement where it needs to be.