Retevis EAK006 transparent tube earpiece with VOX Very convenient to operate, push the button to open the VOX function, which will greatly free your hands. It is noted that the VOX of the walkie talkie should be opened firstly.Suitable for most scenarios, such as law enforcement agents, security company, police, resorts, night clubs, casinos, hotel management, film crews, museum security and other situations. Package Includes: 1x Retevis EAK006 VOX Coiled Covert Acoustic Tube Earpiece1x Spare Mushroom Eartip Retractable coil design Retevis EAK006 walkie talkie with retractable coil and longer cable, PTT to pin is 92cm, PTT to earplug is 31cm±8cm.The maximum length after stretching can up to 60cm, satisfy for the needs of most people of different heights and weights, which is suitable for your teammates or your employees. Compatibility Standard 2 pin k plug, widely compatible with most 2 way radio models, such as RT22, RT21, RT27, RT28, etc. Sturdy metal clothing clip Stainless steel clips designed on the back of the PTT and the transparent catheter interface, are very convenient to fix the earpiece in a suitable place firmly. Durable cable Adopting thickened PU material, all cables of the earpiece are internally tensile for thousands of times, which can be worn for a long time. Specification Speaker Specification Diameter Φ13.6mm*6.5 mm Impedance 32 Ohm±15% at 1 kHz Sound pressure level 116±3 dB at 0.179V/0.1mW/1kHz Plug wire Φ3.0mm PU 4-core straight wire 1.0m Microphone Specification Types Condenser electret microphone Maximum impedance 2.2k Ohm Sensitivity -40±3dB at1Khz（0Db=1V/Pa） Ear hook Φ1.95mm PU 2-core coiled wire Compatible with 2 way radios; Retevis: H777 plus RT1 RT3/RT3S RT5 RT5R RT5RV RT7 RT8 RT81 RT21 RT22 RT22S RT24 RT27 RT28 RT15 RT617 RT618 RT619 RT666 RT668 RT56 RT669 RT43 RT76 RB616 RB617 RB618 RT85 RB635 RB26 RA616 RT86 RB637 RB25 RT10 RB38V RB27 RB627B RB628 KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, KPG69D, KPG70D, KPG74D, KPG75D, KPG77D, KPG82D, KPG87D 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, 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, 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, 3102, Pro-Power TK-2107, 3107, Pro-Talk, TK2207, TK3207, TK-2160, 3160 BAOFENG: Almost All: UV5R, UV8, UV8D, UVB5, UVB6, A52, , UV5RA, UV5RC, UV5RD, UV5RE, UV5RE+, F8, F8+, BF-480, 490, 320, V6, V7, V8, 658, 520, 530, 999, 888, 777, 666s, 777s, 888s, F8+, A5, 388A POFUNG: UV-A52, UV-82, UV-8, UV-6, UV-5R, 888s, 5RA HYT: TC286, 386, 2685, 3865, 6685, 278, 378, 388, 2100, 2088 WOUXUN PUXING: WOUXUN, KG-UV8D, UV6D, UVD1PUV-899, PUXING, PX-777, PX-888, PX-888K, PX-325, PX-358 etc.