EW-DX EM 2 Rack Receiver Features 2 Channel half rack (9.5') 87 MHz switching bandwidth PoE IEEE 802.3af Class 3 Equidistant Channel Spacing: 293 channels in Link Density Mode Network enabled for control with Sennheiser Control Cockpit/media control system through a number of 3rd party modules Clear and easy focused user interface with OLED display Ethernet connectivity (IPv4 and IPv6) Secure AES 256 encryption External PSU 12V/1A All-metal housing EW-DX SK Bodypack Transmitter Features For EW-DX Digital Wireless Receivers Use with Lav/Headset Mic or Instrument Locking 3.5mm TRS Connector 134 dB of Dynamic Range, 24-Bit Audio 3480 Frequencies on Equidistant Grid e-Ink Display Durable Metal Housing Set Up/Operate from Receiver or Phone In-Device Charging 8-Hour AA /12-Hour Rechargeable Battery EW-DX SKM-S Handheld Transmitter with MMD 835 Capsule & Mute Switch Features For EW-DX Digital Wireless Receivers MMD 835 Dynamic Cardioid Mic Capsule