The Shure SLXD14/SM35 offers instructors, presenters, clergy, and performers a wireless headset microphone system that's dependable, easy to set up, and features crystal-clear digital sound quality. Built around a rugged, single-channel, half-rack receiver with removable antennas, the system is ideally suited for portable rigs or long-term installations in small- to medium-sized venues, event spaces, conference rooms, houses of worship, and education facilities.

The SLX-D operates in the UHF band to transmit high-quality 24-bit digital audio with over 120 dB of dynamic range for crisp, detailed sound. It utilizes Digital Predictive Switching Diversity to protect the transmission from interference and deliver a solid, reliable RF signal without dropouts.

This configuration comes with an SM35 cardioid performance headset microphone built for clear vocal reproduction. The headset's wearable design offers a comfortable and secure fit for long-wearing use and gives active performers the freedom to move and express themselves without sacrificing sound quality. The bodypack transmitter features a selectable 1/10mW RF power output and a transmission range up to 330'. It provides up to 8 hours of operation on two AA batteries or an SB903 rechargeable battery (available separately). 

The all-metal, rackmount SLXD4 receiver features an intuitive LCD interface with meters for RF, battery status, and audio output. It also offers 60 dB of gain control, and both mic/line XLR and 1/4" instrument outputs. Additional features include automatic frequency scanning and IR sync to easily link the transmitter and receiver to the same frequency.

With up to 32 mic channels available at the same time, the SLX-D is ready to expand as your needs grow. What’s more, setting up multiple systems is made fast and easy via the Ethernet port, which links them together for quick, coordinated frequency scans from a single receiver.

For Presenters and Performers    SM35 Cardioid Performance Headset Mic    Lightweight Bodypack Transmitter    Digital Predictive Diversity Receiver    1840 Auto-Scan Frequencies    1/10mW RF Power    High-Contrast LCD Screens    Ethernet for Group Scans & Local Control    Compatible with 8-Hr Rechargeable SB903    Expandable to 32 Mic Channels/330' Range

• The SM35 condenser performance headset mic features a cardioid polar pattern that helps reject signal bleed and feedback for use on stages and behind floor monitors. The flexible gooseneck design with discrete adjustment options lets you position the microphone for further source isolation in loud environments.
• The headset mic plugs into the locking TA4M connector on the compact SLXD1 bodypack transmitter. 
• The rugged, plastic transmitter has a belt clip that attaches to the talent’s clothing and an LCD that shows essential information.

• The SLX-D delivers 24-bit digital audio with a fast transient response and over 120 dB of dynamic range—resulting in clear, accurate sound.
• The system operates in the J52: 558 to 602 + 614 to 616 MHz UHF band with a 46 MHz tuning range and 1840 selectable frequencies, far away from potential Wi-Fi interference in the 2.4 GHz band.
• Digital Predictive Switching Diversity uses a microprocessor to switch between the two antennas before dropouts occur.
• With a low latency of 3.2 ms, the system is ideal for applications that require live sound reinforcement.
• The SLX-D's spectrum-efficient digital transmission technology allows for up to 32 mics to be used at once.
• Up to 10 compatible systems per 6 MHz TV band and 12 systems per 8 MHz band are supported.
• Ethernet networking saves you time with coordinated group scanning between multiple receivers from a single location; TCPI command streams from third-party companies such as AMX and Crestron are also supported.

• Housed in a tough, half-rack metal chassis with detachable antennas, the SLXD4 receiver is a great fit for A/V installations or as part of a portable rackmount rig—ready to travel to a meeting or event.
• The SLX-D is engineered to provide outstanding sound for small- to medium-sized spaces and facilities—without costly, complicated features required primarily for large venues.
• Intuitive front-panel controls and a high-contrast LCD screen with audio and RF meters makes set up a snap.
• The auto-scan function automatically seeks out the cleanest available frequency for you. The receiver and transmitter then easily link to the same frequency via infrared.
• The receiver offers up to 60 dB of adjustable gain and the display shows you where the ideal level should be.

• Adding the SB903 lithium-ion rechargeable battery, along with an SBC10-903 single charger or an SBC203 dual-docking charger, offers a cost-effective and environmentally friendly alternative to throwing away AA batteries (batteries and charger available separately).
• Using the SB903 battery and SBC203 charger simplifies the task of keeping multiple transmitters charged and ready—you can even recharge the battery while still in the transmitter.
• When powered by an SB903, the transmitter displays the remaining battery life in hours and minutes.

• Adding UA874 active antennas or PA805SWB passive antennas increases the range of your system and offers increased protection against interference.
• The UA844+SWB antenna distribution system (available separately) lets you stretch the power of your antenna pairs, giving you more on-air channels in less setup time.

Shure offers numerous lavalier, headset, and handheld microphone options to adapt your SLX-D system as your needs evolve.

• The discrete MX153 sub-miniature earset mic provides exceptional clarity in spoken word applications.
• The WL183 omnidirectional lavalier mic is a clip on mic that offers consistent pickup even when the talent turns away from the mic.
• The WL184 supercardioid lavalier mic offers a narrower, feedback-resistant pickup pattern for louder events.
• The SLXD2 handheld transmitter is available with several mic capsules choices for presenters who prefer the flexibility of a handheld microphone.

Related Questions and Answers

Q: 1. can I purchase extra windscreens for the SM31FH if so what is the part number ?

A: The Shure RK379 would be the compatible windscreens available.

Q: 2. CAN THIS BE USED WITH A PORTABLE RECEIVER? I MEAN A RECEIVER THAT IS BATTERY POWERED AND NOT MAINS DEPENDANT. THANKS

A: No. Shure does not offer any portable battery-powered receivers at this time.

Q: 3. I have a SHURE BLX4 J10 and BLX1 J10. Is it possible that the Shure SM31FH is compatible with these?

A: Yes. These cmponents are compatible.

Q: 4. Is this the standard xlr connection or the mini xlr?

A: This headset come with a mini XLR and a standard XLR adapter. I love this headset because I can use it with my wireless body transmitter and also use it pulgged in to my mixer. It does require phatom power when used with a mixer.

Q: 5. Can I use this to teach yoga while on the zoom app?

A: The SM31 is a good option for fitness applications like teaching yoga. Since this is just a microphone and not a complete wireless system, you may want to consider purchasing a complete system with the same mic included such as Shure BLX14/SM31 Wireless Cardioid Fitness Headset Microphone System (B&H # SHB14SM31H10).

Q: 6. Does the entire set come with a travel or road case that holds everything like the older Shure mics did?

A: The Shure BLX1288/PGA31 Dual-Channel Wireless Combo Headset & Handheld Microphone System (J11: 596 to 616 MHz) package does not come with a travel case.

Q: 7. is there a broadcast delay when turning the tx unit on? I do not see a specific mute switch.

A: Thanks all. Looking forward to adding this mic to our mix.

Q: 8. Could I buy two receivers, put them in adjacent rooms then switch channels on the transmitter to switch between the receivers?

A: Yes, if you have two Shure BLX4R Rackmount Wireless Receivers tuned to different frequencies, you would be able to connect one Shure BLX1 Wireless Bodypack Transmitter to either receiver alternately.

Q: 9. Does this microphone sound any better with the GLDX 14 than the BLX 14? We commonly have music playing and want to make sure our instructor's voice is clear and retains a dynamic profile.

A: The Shure SM31FH Fitness Headset Condenser Microphone will sound the same with both wireless systems. The PA that you are connecting the wireless mic system and music to will most likely have more of an affect on the clarity of the sound.

Q: 10. So does this work out of the box with YeaLink SIP-T29G desk IP phone?

A: yes it did with Polycom VVX300