Countryman B6W4FF05TAT, Audio Technica: T27, T31, T51, T200, T201, T210, T300, T310, 1100 Series, 1400 Series, 2000 Series, 3000 Series, (W4) Standard gain for most uses, (T) Tan, B6 Omnidirectional Lavalier Microphone
Countryman B6W5FF05WAN, Audio Technica: T35, T75, T211, T601, T701, 1000 Series, 1200 Series, 4000 Series, 5000 Series, 7000 Series, (W5) Mid gain for theatre head miking, (W) White, B6 Omnidirectional Lavalier Microphone
Countryman B6W6FF05BAN, Audio Technica: T35, T75, T211, T601, T701, 1000 Series, 1200 Series, 4000 Series, 5000 Series, 7000 Series, (W6) Low gain for head miking with powerful vocals, (B) Black, B6 Omnidirectional Lavalier Microphone
Countryman B6W6FF05CAT, Audio Technica: T27, T31, T51, T200, T201, T210, T300, T310, 1100 Series, 1400 Series, 2000 Series, 3000 Series, (W6) Low gain for head miking with powerful vocals, (C) Cocoa, B6 Omnidirectional Lavalier Microphone
Countryman B6W6FF05TAN, Audio Technica: T35, T75, T211, T601, T701, 1000 Series, 1200 Series, 4000 Series, 5000 Series, 7000 Series, (W6) Low gain for head miking with powerful vocals, (T) Tan, B6 Omnidirectional Lavalier Microphone