The Sennheiser EW-D SKM-S (Q1-6) is a digital wireless handheld transmitter body designed for the EW-DX series, operating in the Q1-6 frequency band (470 to 526 MHz). This transmitter is sold without a microphone capsule, featuring instead a threaded connector that accepts a wide variety of Sennheiser and third-party microphone capsules (like the MMD series). A key feature is its integrated mute switch, allowing the user to instantly silence the transmitter output without powering down, which is essential for broadcast, theater, and presentation applications where quick, silent cuts are needed. The transmitter body is constructed from durable metal and includes an OLED display for clear status feedback.

Utilizing the full capabilities of the EW-DX platform, it provides 24-bit/48 kHz digital audio transmission, ultra-low latency, and 128-bit AES encryption. It is powered by two AA batteries and is designed to pair seamlessly with EW-D series receivers. This flexible transmitter body is ideal for sound companies, rental houses, and professionals who own multiple microphone capsules and require the versatility to swap them for different applications, all while benefiting from the mute functionality and premium digital wireless performance of Sennheiser's flagship system.