📻COMPATIBILITY-Compatible with Hytera HYT walkie talkie radio BD502 BD502i BD552i BD612i PD402 PD402i PD502 PD502i PD482i PD562 PD562i TC-508 TC-580 TC-510 TC-518 TC-610 TC-500 TC-700 TC-1600 TC-2100 RCA RDR2500 RDR2550 RDR2600 POWER446, etc. (please check the plug and model before purchasing) 💧WATERPROOF - featured with IP65 waterproof degree. Dust intrusion can be prevented(with no hurmful sediments). With the rainproof effect, this 2.5 mm plug speaker mic can resist the water column of the high-pressure water spray gun for at least 3 minutes. 🔈BIG PTT BUTTON-with a big PTT button by the side, the function of push-to-talk can help you open the microphone quickly. Sensitive push to talk button switch that are easy to handle even if you're wearing thick gloves. Easy to carry with the small handheld size. 🎧3.5MM AUDIO JACK-the handheld speaker mic has a 3.5mm earphone jack for audio receive to make it possible to use in noisy environments. If you don't want others to hear sound, just need to attach a 3.5mm listen only earpeice. (Package Includes：1 X Radio Speaker Microphone & 1 X 3.5mm Listen Only Earpiece) 🔩ROTATING CLIP-with a 360 °rotatable clip, it's convenient to clip the radio microphone in anywhere. No matter clip on clothes or backpack, easily for a shoulder mic to use. With the stretchable coil cord and rugged cable, the radio speaker mic can be more flexible to speak and hear the high quality clear sound without lifting radio. 🚧WIDELY USE-excellent for using in police, military, security, bouncer, nightclubs, bars, restaurants, hotels, warehouses, party, concert, stage, studio, etc. It is ideal choice for outdoor activities. Compatible with Hytera HYT walkie talkie radio BD502 BD502i BD552i BD612i PD402 PD402i PD502 PD502i PD482i PD562 PD562i TC-508 TC-580 TC-510 TC-518 TC-610 TC-500 TC-700 TC-1600 TC-2100 RCA RDR2500 RDR2550 RDR2600 POWER446, etc.