Rumberger Accordion Microphone TA3000eco S, Descant Microphone System, Suitable for 72 bass accordion and Styrian harmonica, Elegant metal housing, Push-button for Power-On/Off (mute), Very low power consumption, Can be operated wirelessly, Output: 6.3 mm jack, Volume and tone control on the microphone, Easy operation, Uniform sound pickup, Absolutely overload-proof, Integrated filters (EQ’ s) for optimal sound, Battery status display, Extremely low transmission of structure-borne sound, Powered by battery: 1.5V alkaline AAA, Operating time: approx. 30 hours, Directional characteristic microphones: Cardioid, Frequency range microphones: 80 - 20,000 Hz, Output Impedance: 600 Ohm, Output level: Max. 0 dBu, Weight: 165 g, Length TA3000eco-S: 30.9 cm, Number of microphone capsules: 4, Including AAA alkaline battery, mounting kit (2 x mounting plates, 4 x screws) and operating instructions