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Raise Your Voice. Easy to use all-in-one wireless system for singers and presenters.


Raise your voice. Go for XS WIRLESS 1 and rely on a solid wireless transmission with up to 10 compatible channels in a stable UHF band. The XS WIRELESS 1 VOCAL SET is an easy to use all-in-one wireless system for singers and presenters, excellent for live sound featuring Sennheiser’s renowned evolution microphone capsules, e825 (dynamic, cardioid) or e835 (superior dynamic, cardioid) to get started. The set includes an intuitive stationary receiver for quick setup and hassle-free handling, as well as a vocal microphone and microphone clamp.


  • Excellent live sound featuring Sennheiser’s renowned evolution microphone capsules (e825 or e835)

  • Antenna-switching diversity reception

  • Integrated antennas

  • Automatic frequency management and synchronization via remote channel for easy setup

  • Selectable UHF frequencies within a large bandwidth

  • Up to 10 compatible channels

Sennheiser XSW 1-835 Wireless Microphone System



approx. 200 x 42 x 127 mm

THD, total harmonic distortion

≤ 0.9%

Pick-up pattern


Signal-to-noise ratio

≥ 103 dBA

RF output power

10 mW

Switching bandwidth

up to 24 MHz

Operating time

approx. 10 hrs


wideband FM

Output voltage

1/4“ (6.3 mm) jack socket (unbalanced): +6 dBu, XLR socket (balanced): +12 dBu


rugged ABS housing

Dynamic range



8 frequency banks, each with up to 10 factory-preset channels

Frequency range

A: 548-572 MHz, GB: 606-630 MHz

B: 614-638 MHz

C: 766-790 MHz

D: 794-806 MHz

E: 821-832 MHz, 863-865 MHz

K: 925-937.5 MHz


< 3 μV at 52 dB(A)rms S/N


adjustable from 3 dBμV to 28 dBμV (combined with pilot tone)


2.4 GHz, Low Power OQPSK (only active during synchronization)

Input sensitivity

1.5 mV / Pa

Adjustment Range Transmitter

0 to -30 dB, adjustable in 10 dB steps

Audio adjustment range

45 dB, adjustable in 5-dB steps

Line / Mic level

20 dB, switchable

Temperature Range

operation: 0°C to +40°C, storage: –20°C to +70°C

Receiver Principle

double superheterodyne

Diversity principle

Antenna switching diversity via internal antennas


  • Weight

    approx. 340g

  • Power supply

    Receiver: 12 V DC nom. / 300 mA

  • AF frequency response

    Receiver: 50 to 16,000 Hz (–3 dB)


  • Weight

    approx. 245g

  • Power supply

    Microphone: 2 AA size batteries, 1.5 V

  • AF frequency response

    SKM 825: 80-14,000 Hz

    SKM 835: 80-16,000 Hz

What's in the Box

  • 1 receiver EM-XSW 1
  • 1 handheld transmitter SKM 825-XSW or SKM 835-XSW
  • 1 microphone clamp MZQ 1
  • 1 power supply NT 12-5 CW
  • 2 AA batteries
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