SPL: max. 132 dB
Connector: safely Hirose 4 pin plus configuration for wireless belt pack transmitter
(Compatible With Audio Technica T27/T31/T51/T200/T210/T300/T310 and 1100/1400/2000/3000 series)
Not compatible with: T35, T75, T211, T601, 1000 Series, 1200 Series, 4000 Series, 5000 Series, 7000 Series