This is a Throat Microphone Earpiece that has an extendable Neck Band. It transmits sound directly from your throat. So it can eliminate most background noise whether in the battle field or at the . A must-have device. and Professional kit. durable to use. Can be applied on the following radio models: For Talkabout Radios: T270, T280, T289, T4000, T4800, T4500, T4700, T4800, T4900, T5000, T5022, T5030R, T5100, T5146, T5200, T5300, T5320, T5400, T5410, T5412, T5420, T5422, T5428, T5432, T5500, T5512, T5522, T5530, T5532, T5500, T5550, T5600, T5620, T5700, T5710, T5720, T5725, T5800, T5820, T5822, T5900, T5920, T5950, T6000, T6100, T6200, T6210, T6212, T6220, T6222, T6250, T6300, T6310, T6312, T6320, T6322, T6400, T6412, T6500, T6510, T6530, T6550, T6512, T6552R, T6500AA, T6600, T6700, T6800, T6900, T7000,T7100R, T7150R, T7200, T7300, T7400R, T7400AA, T7450R, T7100, T7150, T7200, T7400, T7450, T7500, T7600, T7700, T7800, T8000, T8500, T8550, T9000,T9500, T9500R, T9500XLR, T9550, T9550XLR, T9580XLR, T9650, T9680; TLKR: TKLR T3, TKLR T4, TLKR T5, TLKR T6, TLKR T7, TLKR T8. EM1000, EM1000R, EM1020R, EM1010TPR. MR350R,MR355R, MR356R, MH230R, MB140R. MC220R, MC225R, MH230R, MD200TPR, MJ270R, MS350R, MS355R, MS356R, MT350R, MT352R. XTR446, XTL446, PMR446. SX500, SX600, SX620R, SX700, SX709R, SX750, SX800, SX900, SX920R. FV200, FV200R, FV200AA, FV300, FV500, FV500R, FV500AA, FV600, FV700, FV750, FV800, FR50, FR60. Spirit GT, Spirit GT+ Talk Range: 3km Maximum Range: 3km-5km Frequency Range: Acoustic tube Earpiece Storage Channel: Depends on your radio Walkie Talkie Type: Portable 1-Pin for Neck Band Type: Accessories Is,Display: No Plug: 1-Pin Plug is,customized: Yes Superb sound transmission, noise cancellation. Extendable neck band design suitable for different people. With the comfortable, detachable acoustic tube and ear-bud, it transmits sound clearly and your communication will be covert. Its Finger PTT also enables a convenient and smooth talking. It's widely used by personnel in restaurant, club, shopping mall, police station, and the other places requiring quick and easy communication. Net weight: 73g. Color: black Material: ABS size: 10*5*2CM jack: 2.5mm Package Contents: 1*1-Pin Throat Mic Headset for Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.