2 Pin Air guide Noise Reduction Earphone Microphone 1. Material: PU line 2. Both left and right ears can be worn comfortably 3. Remote microphone with on-demand call button, you can edit anywhere 4. The transparent tube connected to the earplugs makes you look like a special agent or bodyguard, and protects your health from radio ectromagnetic wave radiation 5. The earpiece/speaker fits easily in your ears to keep your call private 6. Cable length (plug and play): about 39.4 inches (100 cm); to sound tube: about: 23.6 inches (60 cm) 7. Two-pin standard diameter: ear 2.5mm stereo (thimble), microphone 3.5mm stereo (bottom pin) 8. Sound tube length: can be extended to 19.7 inches (50 cm) 9. The distance between the two t: 0.2 inches (5 mm) 10. Weight: 0.075lb (34g) 11. Suitable for HYT TC-500, TC-600, TC-700, TC-610, TC-620, TC-2110, TC-1600, TC-510; suitable for Motorola GP2000, GP2100, GP300, GP 308, GP68 , GP88, GP88S, SP10, SP21, SP50XTN446, XTN500, XTN600, P040, P080, P100, P110, P1225, 1225LS, 2000, XU1100, XU2100, XU2600, CLS1110, CLS1410, CLS1413, CLS1450, CLS1450C, etc.