The Sennheiser EW-D 835-S (Q1-6) is a portable wireless microphone designed for live professionals, presentations, theaters, and vocal performances. The heart of the system is the EW‑D EM rack-tabletop receiver, which supports up to 2240 selectable frequencies within the UHF Q1‑6 range (470.2–526 MHz), with a bandwidth of 56 MHz and up to 90 simultaneous channels.

Thanks to UHF digital transmission, it eliminates interference and noise, offering 24-bit audio with a dynamic range of 134 dB and ultra-low latency of 1.9 ms, perfect for preserving every sound detail. The SKM‑S handheld transmitter is robust and lightweight (~304 g including MMD 835 capsule) and features an MMD 835 cardioid capsule (max SPL 154 dB, frequency response 50 Hz–18 kHz) and integrated mute switch.

Pairing between transmitter and receiver is facilitated by the automatic Sync function and the Smart Assist app via Bluetooth BLE (2402–2480 MHz), which allows remote configuration, battery monitoring, frequency scanning, and quick setup. The Sennheiser EW-D 835-S (Q1-6) has a battery life of up to 8 hours with AA batteries, which can be extended to 12 hours using the optional BA 70 battery pack.

The receiver features balanced XLR (+18 dBu max) and unbalanced (+12 dBu) audio outputs, with two removable BNC antenna connectors and a backlit OLED display for RF/AF, settings, lock, battery status, and more. It also includes a rackmount kit, antenna brackets, universal power supply, MZQ 1 clamp, anti-vibration feet, and quick start guide.

Resistant and reliable, the system operates between -10°C and +55°C and in humidity conditions up to 95% without condensation. In summary, the Sennheiser EW-D 835-S (Q1-6) is the ideal choice for those looking for a wireless microphone with high audio quality, immediate operability, extensive scalability, and smart control via smartphone.