Sennheiser SL BOUNDARY 114-S DW-4 B Wireless Microphone - 506623

Product Overview

The Sennheiser SL BOUNDARY 114-S DW-4 B is a fully wireless boundary microphone built for the SpeechLine Digital Wireless (DW) ecosystem. Its low-profile, flat design allows it to sit flush on conference tables, council chambers, or courtroom surfaces, capturing speech with minimal visual intrusion. Operating on the license-free 1.9 GHz DECT band, the 114-S DW-4 B delivers stable, interference-resistant digital audio transmission without requiring frequency coordination. Finished in black, it integrates with the SL MCR DW receiver and Sennheiser Control Cockpit for centralized monitoring and management of multi-microphone speech reinforcement installations.

Product Description

Boundary microphones capture sound through the principle of pressure zone capture at a flat surface, making them uniquely suited for conference tables where a discreet, surface-mounted solution is preferred over a standing gooseneck or handheld. The Sennheiser SL BOUNDARY 114-S DW-4 B combines this acoustic approach with the full flexibility of the SpeechLine Digital Wireless platform, eliminating cable runs entirely while maintaining the audio quality required for professional speech reinforcement. The microphone operates on the 1.9 GHz DECT frequency band, which is license-free and designed specifically for in-building voice communications, ensuring clean, reliable transmission in dense RF environments typical of government and enterprise conference facilities. Wireless charging via the Qi inductive standard allows the unit to be placed on a compatible charging base (such as the CHG 2W, sold separately) or recharged by USB, keeping the table surface free of cables even during charging. Battery status LEDs on the unit provide at-a-glance charge indication so operators know exactly when a recharge is needed. The SL BOUNDARY 114-S DW-4 B is compatible with both the SL Rack Receiver DW and the SL MCR DW, giving system designers flexibility in how they configure the receiving infrastructure. All units in a SpeechLine DW installation can be remotely monitored, muted, and managed through Sennheiser Control Cockpit software, enabling a single operator to oversee a multi-seat conference environment from the tech booth. The black finish is unobtrusive in formal meeting environments, and the flat form factor avoids blocking sightlines between delegates. Whether deployed in a corporate boardroom, a city council chamber, or an international conference hall, the 114-S DW-4 B delivers reliable, professional-quality wireless speech pickup from the table surface.

Key Features

• Wireless Boundary Design — Flat form factor mounts flush on conference tables for discreet, cable-free speech pickup at the surface level.
• SpeechLine DW Ecosystem — Fully compatible with SL MCR DW and SL Rack Receiver DW for scalable multi-seat deployments.
• 1.9 GHz DECT Operation — License-free frequency band optimized for stable in-building voice transmission with minimal interference.
• Qi Inductive Charging — Wireless Qi or USB charging keeps the table surface completely cable-free during recharging.
• Sennheiser Control Cockpit Compatible — Enables remote monitoring, muting, and system control from a centralized software platform.
• Battery Status LEDs — Dedicated indicators give immediate visual confirmation of remaining battery capacity.
• CHG 2W Compatible — Works with Sennheiser’s wireless charging base for two simultaneous devices (sold separately).
• Dual Receiver Compatibility — Pairs with both the SL MCR DW and SL Rack Receiver DW for flexible infrastructure design.
• Black Finish — Unobtrusive matte black finish suits formal corporate, government, and legal environments.
• Optimized for Speech — Designed specifically for voice transmission in conference rooms, boardrooms, and deliberative chambers.

Typical Applications

• Conference room
• Boardroom
• Government space

Technical Specifications

Frequently Asked Questions

Q: What is a boundary microphone and why use one on a conference table?

A boundary microphone sits flat on a reflective surface and captures sound through pressure zone pickup, reducing phase cancellation and providing consistent pickup of all speakers seated around the table. The flat form factor is also far less obtrusive than a gooseneck stand.

Q: Does the SL BOUNDARY 114-S DW-4 B require a radio license?

No. It operates on the 1.9 GHz DECT frequency band, which is license-free for professional use in most countries, simplifying deployment in government and enterprise environments.

Q: Which receiver does this microphone work with?

The 114-S DW-4 B is compatible with both the SL MCR DW (multi-channel rack receiver) and the SL Rack Receiver DW, giving system designers flexibility in their infrastructure configuration.

Q: How is the microphone charged?

The unit supports Qi wireless inductive charging (compatible with the optional CHG 2W base) and USB charging. Both methods eliminate cable clutter on the table surface.

Q: Can multiple boundary microphones be managed from a single interface?

Yes. All SpeechLine DW devices, including the SL BOUNDARY 114-S DW-4 B, are fully compatible with Sennheiser Control Cockpit software, which allows remote monitoring, muting, and configuration of all units from a centralized platform.

Q: Is this microphone suitable for large conference facilities with many seats?

Yes. The SpeechLine DW system is designed for scalable multi-seat deployments. Multiple 114-S DW-4 B units can be used in conjunction with the SL MCR DW multi-channel receiver to cover large conference tables or council chambers.

Q: Where can I purchase the SL BOUNDARY 114-S DW-4 B?

The Sennheiser SL BOUNDARY 114-S DW-4 B is available through Creation Networks at creationnetworks.net. Contact us for system design support and volume pricing.