Features: Two wire PTT microphone Detachable transducer and clear tube earphone Extended length of acoustic tube: 35 cm Two wires extend from PTT switch, one to the acoustic tube adaptor 50 cm and another to the radio 90cm Metal clips and hardware Perfect sound expression Replaceable Earbud to keep your ear health 360° stainless fixed clip to fix any convenient place Compatible with: Radioddity: R1/R2/GA-2S/GA-5S/GD-77/GD-77S/RD-5R/GA-510/GS-5B/GM-30/GM-N1/GD-88 BAOFENG: UV-5R Series (UV-5R/UV-5RTP/UV-5R PLUS/ UV-5X3/UV-5X) BF-480/490/320/V6/520/530/999/888/777/666S/777S/888S HYT TC286 386 2685 3865 6685/TC 278 378 388/TC 2100 2088 Kenwood: TH-F6/F6A/D7/D7A/D7AG/D7E/F7/F7E/G71/G71A TH-G71E/K2/K2A/K2E/K2ET/21/21AT/21BT/22 TH-22A/22AT/22E/25/26/27/28/31AT/31BT/41AT/41BT TH-42/42A/42AT/2E/45/46/47/48/55/75/77/G71 TH-205/-215/225/235/235A/235E/315/41 TK-208/220/240/240D/248/250/260/260G/270/270G/308 TK-360G/370/370G/372G/373G/320/340/340D/348/350TK-378/378G/430/431/353/360 TK-2100/ 2102/2130/ 2160/3100/3101/3102/3107/ TK-3118/3130/3131/3160 etc Linton: LT-2288/3288/6288/5288/3188/2188/3260/2268/3268,/6288/6188/3288A Retevis: H-777/R21/RT22/RT-5R/RT-5RV/RT1/RT2/RT5/RT7/RT23/RT26/RT27 WOUXUN: KG-UVD1/UVDIP KG-669/659/679/689/639/699/801 QUANSHENG: TG-K4AT/2AT/22AT/45AT/42AT/25AT/UV RELM RPU416/RPV516/RPU499,RPV599X WEIERWEI: VEV-3288S/VEV-6288/VEV-3288 (All K-type connector) Package Content: 1 x 2 Wires PTT Earpieces