With QD acoustic tube (9", 3.5mm L-shape)
Works with Series:
F1000/S/T – F2000/S/TF1000D – F2000DF1100D – F2100DF3161 – F4161 / F3161D – F4161DF3261D – F4261DF52D/F62DF3400D – F4400DF9011 – F9021F7010 – F7020
