Stretchable Earhook Walkie Talkie Headset Stretchable earhook, upgrade design of D-shape two way radio earpiece, makes everyone can get a more comfortable earpiece experience, the earhook can stretch from 52mm to 65mm, get the best size for yourself by simple nudge, and it has the 2 wire design, which will make the wearing more easier and convenient Durable Pu Cable This 2 pin radio headset is made of very durable material, PU and Oxygen-free copper; these durable materials is not only for longer usage life; it also made the earpiece lightweight; easy to carry and storage. Nice PTT with Mic The earphone with ptt and mic make our walkie talkie super easy to use, we won’t need to hold it anymore, the clip fixed on the shirt, we can directly talk with our team. More Stable and Clean D-shape Earpiece D shaped headphone is more stable on our ear, and it doesn't need to go inside the ears, which is more clean and hygienic. Specification Speaker Size 20mm Speaker Specifications 32 Ohms Speaker Sensitivity 108dB Frequency Response 20-4KHz Rated Input Power 10mW Microphone Parameters -40+/-3dB at 6.0x5.0 Microphone Impedance 2200Ohm Working Voltage 2-10V Weight 38g This Walkie Talkies Earpiece compatible with Compatible with Retevis: RT22/RT21/H-777/RT68/RT19/RT27/RT28/RT22S/H-777S/RT15/RT18/RT27V/RT21V/RB38V/RT7/RB17V/RB27V/RT5R/ RT5RV/RT5/RT85/RT76/RB26/RB17A/RB27/RT84/RT53/RT10/RT43/RT72/RT26/RT1/RT86/RB25/RT81/RT50/RT56/RA16/RB37/RB35/ RT67/RT17/RB17/RB17P/RT66/RB27B/RB28/RT69/RT46/RB18/RT3S/RB28B/RB29/RT76P/RA85/RB85/RB87 Compatible with Kenwood KPG: KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, KPG69D, KPG70D, KPG74D, KPG75D, KPG77D, KPG82D, KPG87D Compatible with Kenwood TH: TH-D7, TH-D7A, TH-D7AG, TH-D7E, TH-F6, TH-F6A, TH-F7, TH-F7E, TH-G71, TH-G71A, TH-G71E, TH- K2, TH-K2A, TH-K2E, TH-K2ET, TH-21, TH-21AT, TH-21BT, TH-22, TH-22A, TH-22AT, TH-22E, TH-25, TH-26, TH-27, TH-28, TH31AT, TH31BT, TH41AT, TH41BT, TH-42, TH-42A, TH-42AT, TH-42E, TH-45, TH-46, TH-47, TH-48, TH- 55, TH-75, TH-77, TH-G71, TH-205, TH-215, TH-225, TH-235, TH-235A, TH-235E, TH-315, TH-415 Compatible with Kenwood TK: TK-208/308, TK-220/320, TK-240/340, TK-240D/340D, TK-248/348, TK-250/350/353, TK-260/360, TK- 260G/360G, TK-270/370, TK-270G/370G, TK-272G/372G/373G, TK-278G/378G/388GPro-Talk, TK-430/431, TK-2100/3100Pro-Talk, TK- 2102/3102Pro-Power, TK-2107/3107Pro-Talk, TK2207, TK3207etc TK-2160/3160 Package Includes: 10 x EEK012 Walkie Talkie Earpiece This Walkie Talkies Earpiece compatible with Compatible with Retevis: RT22/RT21/H-777/RT68/RT19/RT27/RT28/RT22S/H-777S/RT15/RT18/RT27V/RT21V/RB38V/RT7/RB17V/RB27V/RT5R/ RT5RV/RT5/RT85/RT76/RB26/RB17A/RB27/RT84/RT53/RT10/RT43/RT72/RT26/RT1/RT86/RB25/RT81/RT50/RT56/RA16/RB37/RB35/ RT67/RT17/RB17/RB17P/RT66/RB27B/RB28/RT69/RT46/RB18/RT3S/RB28B/RB29/RT76P/RA85/RB85/RB87 Compatible with Kenwood KPG: KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, KPG69D, KPG70D, KPG74D, KPG75D, KPG77D, KPG82D, KPG87D Compatible with Kenwood TH: TH-D7, TH-D7A, TH-D7AG, TH-D7E, TH-F6, TH-F6A, TH-F7, TH-F7E, TH-G71, TH-G71A, TH-G71E, TH- K2, TH-K2A, TH-K2E, TH-K2ET, TH-21, TH-21AT, TH-21BT, TH-22, TH-22A, TH-22AT, TH-22E, TH-25, TH-26, TH-27, TH-28, TH31AT, TH31BT, TH41AT, TH41BT, TH-42, TH-42A, TH-42AT, TH-42E, TH-45, TH-46, TH-47, TH-48, TH- 55, TH-75, TH-77, TH-G71, TH-205, TH-215, TH-225, TH-235, TH-235A, TH-235E, TH-315, TH-415 Compatible with Kenwood TK: TK-208/308, TK-220/320, TK-240/340, TK-240D/340D, TK-248/348, TK-250/350/353, TK-260/360, TK- 260G/360G, TK-270/370, TK-270G/370G, TK-272G/372G/373G, TK-278G/378G/388GPro-Talk, TK-430/431, TK-2100/3100Pro-Talk, TK- 2102/3102Pro-Power, TK-2107/3107Pro-Talk, TK2207, TK3207etc TK-2160/3160 Package Includes: 10 x EEK012 Walkie Talkie Earpiece