... close to the skin tone, more easier to hide,suitable for special operations forces, army, police.1. Accoustic tube ear/ ... noise performance5. Volume-type flame retardant materials are used wire for flexibility, scalability, flexibility is exceptionally strong, the use of ... silicone tube earpiece with skin cable and skin microphone• Working/compatible for Kenwood TH Series:TH-D7 , TH-D7A , TH-D7AG , ...