The Sennheiser EW-D 835-S Set is a flexible and feature-rich digital wireless for a range of singing, speaking and instrument applications that allows for seamless product pairing and management via the EW-D Smart Assist App. Sennheiser's coveted e835 capsule provides world-class live sound from a lightweight handheld transmitter with in-built mute switch. Features Digital transmission operating in the UHF spectrum greatly enhances range, reliability and scalability Smart Assist App connects via Bluetooth Low Energy for a streamlined setup and operation at a distance Auto scan creates reliable connections with minimal time and effort 134 dB audio input dynamic range eliminates need for sensitivity adjustments and preserves every detail Elimination of intermodulation enables channels to be placed in an equidistant tuning grid 600 kHz apart 56 MHz of tuning bandwidth and equidistant spacing enables up to 90 channels 2,240 selectable frequencies allow for fine tuning Up to 8 hours of operation with 2x provided AA batteries Raising the Bar Breaking boundaries set by every other wireless system on the market, the Sennheiser Evolution Wireless Digital systems provide greater dynamic range than the rest. It secures the most reliable signal automatically in a matter of seconds, and is scalable up to 90 channels, thanks to 56MHz of tuning bandwidth. It's no surprise that this wireless system is in it's own league. Equidistant Spacing – Simpler than it Sounds The Evolution Wireless Digital systems feature an equidistant tuning grid, previously only found in their flagship Digital 6000 and Digital 9000 wireless systems. Intermodulation between EW-D transmitters is eliminated thanks to the outstanding linearity of the high-quality components used. This allows frequencies to be evenly spaced every 600kHz beside each other. This contributes to the system's scalability and astonishingly high channel count, and simplifies frequency coordination for wireless novices and weathered professionals alike. An Engineer in your Pocket Get total control in the palm of your hand with the power of Bluetooth Low Energy and the Sennheiser Smart Assist App. Enjoy the advantages of an incredibly fast automated setup, remote access to every system parameter, and the added benefit of remote monitoring - all from the convenience of your smart device - saving you time, energy and allowing you to perform with complete confidence. Specifications Frequency Range: 552 - 607.8MHz THD: = -60dB for 1kHz @ -3dBFS input level Audio Frequency Response: 20Hz - 20kHz (-3dB) @ 3dBFS System Latency: 1.9ms EW-D EM Current Consumption: = 300 mA EW-D EM Audio Output Level: 18dBu Max. EW-D EM Dimensions 212mm x 44mm x 189mm approx. 1000g MMD 835 SPL: 154dB MMD 835 Transducer Principal: Dynamic MMD 835 Pickup Pattern: Cardioid MMD 835 Sensitivity: 2.1mV/Pa MMD 835 Dimensions 405mm x 350mm x 73mm 3.1kg EW-D SKM-S Power Supply: 2 AA batteries 1.5 V (alkaline manganese), or BA 70 rechargeable battery pack EW-D SKM-S Current Consumption: <300mA EW-D SKM-S Dimensions 50 x 268 mm (incl. MMD 835 microphone module)/40 x 200 mm (without microphone module) approx. 304 g (incl. MMD 835 microphone module)/approx. 195 g (without microphone module) What's in the Box? EW-D EM rack receiver EW-D SKM-S handheld transmitter MMD 835 microphone module MZQ 1 microphone clamp 2 rod antennas power supply with country adapters rackmount set 4 rubber feet quick guide safety guide manufacturer declaration sheet