Sennheiser EW-D CI1 SET Digital Wireless Instrument System Kit with Earset Microphone (Q1-6: 470 to 526 MHz)

Sennheiser EW-D CI1 SET Digital Wireless Instrument System with Earset Microphone

The Sennheiser EW-D CI1 SET with Senal UEM-155-35H-BE earset microphone is a powerful, versatile digital wireless system built for musicians, presenters, performers, and educators who need unmatched audio clarity and reliable wireless freedom. This complete kit lets you seamlessly switch between a CI 1 guitar/instrument cable and a beige, low-profile earset mic, making it ideal for both live performances and spoken word presentations.

Professional Wireless System for Instruments and Voice

At the heart of this bundle is the Sennheiser EW-D CI1 SET, which operates in the UHF frequency range (470 to 526 MHz). It delivers 24-bit digital audio quality, ultralow 1.9 ms latency, and a massive 134 dB dynamic range, ensuring every nuance of your sound comes through clearly, whether you're on stage with a guitar or presenting with a headset mic.

Easy Setup with Bluetooth and Smart Assist App

Setting up wireless systems can be intimidating, but not with the Sennheiser EW-D. Thanks to built-in Bluetooth Low Energy, you can pair your transmitter and receiver using the free Smart Assist App for iOS and Android. From your phone or tablet, quickly assign frequencies, mute channels, monitor battery levels, and label channels. It’s fast, intuitive, and perfect for users of any experience level.

Rugged, Stage-Ready Build for Demanding Environments

The included EW-D SK bodypack transmitter and EW-D EM half-rack receiver are designed with durable, all-metal housings that can withstand frequent use on tour, in classrooms, or during worship services. The receiver’s OLED screen makes setup and monitoring easy, even in dim lighting, while its auto-scan feature locates the cleanest frequencies in seconds.

Use the system standalone or rackmount it using the included kit, great for both portable and permanent installations.

CI 1 Instrument Cable: Wireless Freedom for Musicians

The CI 1 cable connects guitars, basses, and keyboards via a locking 3.5mm connector to the bodypack transmitter. Musicians get total freedom on stage without worrying about cable tugs or dropouts. The transmitter offers up to 8 hours of runtime on two AA batteries, or 12 hours with an optional BA 70 rechargeable battery (charging accessories sold separately).

Senal UEM-155-35H-BE Omnidirectional Earset Microphone (Beige)

This bundle includes the Senal UEM-155-35H-BE, a lightweight, discreet, and flexible earset microphone designed for maximum comfort and natural sound reproduction. Its omnidirectional polar pattern ensures consistent vocal pickup while minimizing proximity effect, making it perfect for public speaking, theater, education, and worship applications.

The adjustable ear loop and boom allow precise placement, while the high gain-before-feedback design helps maintain clarity even in loud environments. A windscreen and cable clip are included for quiet, distraction-free performances.

Equidistant Tuning Grid and RF Performance You Can Trust

Borrowing from Sennheiser’s elite Digital 6000/9000 systems, the EW-D’s equidistant tuning grid eliminates intermodulation, allowing up to 90 channels to operate simultaneously without frequency coordination. The system uses Intelligent Switching Diversity to choose the strongest signal path, ensuring a stable wireless connection free of dropouts or interference, even in busy RF environments.

Designed for Scalability and Expansion

Whether you're working with a single system or scaling up for multi-channel productions, the EW-D system grows with you. You can control up to 16 channels from one mobile device via the Smart Assist App and expand using additional phones or tablets if needed.

Optional accessories like front-mount antenna kits, directional remote antennas, and the EW-D ASA antenna splitter allow for greater range, less signal clutter, and even more reliable performance in large setups.

Compatible with a Wide Range of Sennheiser Microphones

Customize your system further with a range of compatible microphones and transmitters:

• For presenters and educators: Lavalier mics like the ME 2, ME 4, and broadcast-grade MKE 2 provide flexible, discreet vocal options.

• For vocalists and stage performers: Use the EW-D SKM-S handheld transmitter with capsules like the MMD 835, MMD 935, and more for powerful handheld performance.

• For active presentations: The ME 3 headset mic provides excellent speech clarity with a secure fit.

A Complete, Flexible Wireless System

Whether you're delivering a speech, performing on stage, or leading worship, the Sennheiser EW-D CI1 SET with Earset Microphone offers the clarity, convenience, and rugged reliability professionals demand. With Bluetooth control, smart features, and flexible input options, it’s a future-proof wireless system that adapts to your needs, both now and as they grow.