Sennheiser ew D1 845S Vocal Set, digital 2,4 GHz Wireless-System, comprising EM D1 9,5" receiver, SKM-S D1 handheld transmitter with mute switch, dynamic 845 capsule, super-cardioid, up to 15 compatible channels under best conditions, automatic frequency management with Wireless Link Protection Technology, internal De-Esser, 7-Band Equalizer and audioeffects as Megaphon and Telephone voice, Automatic Gain Control, aptX-Live Codec, 9,5" metall receiver with removeable antennas, incl. transport case, 2x AA Batteries, power supply, MZQ microphone holder and battery holder, optional BA10 rechargeable battery, GA 4 Rackmount and CHG-2 battery charger available, worldwide licence free use