THOR Shadow SH20 Dual Ear Headset Microphone - Brown

The THOR Shadow SH20 is a dual-ear headset microphone built for environments where audio quality matters and visibility of the mic does not. The name says it all - this microphone is designed to stay out of the way while doing its job exceptionally well. With a 3 mm omnidirectional capsule mounted on a thin 0.7 mm boom arm, the SH20 sits close to the corner of the mouth without being the first thing an audience notices on stage or on camera.

The headset is extremely lightweight at just 5 grams without the cable, which makes a real difference for speakers, teachers, and performers who wear a mic for extended periods. The dual-ear design means the frame wraps around both ears and rests on the back of the neck, distributing the weight and keeping the mic stable even during active movement. The boom can be flipped to either side without any tools, making it easy to accommodate different preferences or share across performers in a production setting.

One of the standout features of the SH20 is the ReEx boom - short for Retractable and Extendable. Rather than a fixed-length arm, the boom slides between 95 mm and 117 mm so you can dial in the exact position that works for the wearer. Combined with the ability to gently shape the boom to angle the capsule toward the corner of the mouth, this gives you a level of fit control that is rarely found at this price point. The omnidirectional pickup pattern captures voice naturally from all directions without the proximity effect coloration that cardioid mics can introduce when worn close to the mouth.

The brown finish blends well with a range of skin tones and hair colors, making it a practical choice for on-camera applications like livestreaming, broadcast, or video production where minimizing mic visibility is a priority. The included protective case, windscreen, and cable clip complete a thoughtful package that is ready to put to work right out of the box.

Technical Specs

• Polar Pattern: Omnidirectional
• Frequency Response: 40 Hz - 20 kHz
• Sensitivity (typical at 1 kHz): -45 dB +/- 3 dB (0 dB = 1V/Pa @ 1 kHz, RL: 2.2K ohm, DC: 3V)
• Max SPL (1 kHz at less than 1% THD): 130.5 dB SPL Peak
• Output Impedance: 2,000 ohms
• Equivalent Noise Level: 32 - 34 dB (A-Weighted)
• Weight: 5 g (without cable)
• Style: Reversible dual ear, ambidextrous
• ReEx Boom Length: 95 mm - 117 mm (retractable and extendable)
• Boom Diameter: 0.7 mm
• Capsule Housing: 3 mm OD x 7 mm
• Cable Thickness: 1.4 mm
• Connector (this listing): TA4F
• Color (this listing): Brown
• Available Colors: Tan, Brown, Black
• Available Connector Options: TA4F, 3.5 mm, MicroDot-TA4F, MicroDot-3.5mm, MicroDot-LEMO
• Intended Use: Indoor
• Warranty: One year from date of purchase 
• Included in Box: Headset microphone, TA4F cable, windscreen, cable clip, protective carrying case

Compatibility Guidance

The SH20-BR-TA4F uses a TA4F connector, which is the standard four-pin mini XLR connector found on Shure wireless bodypack transmitters including popular systems in the BLX, GLXD, SLX-D, ULX-D, Axient and QLX-D series. If your wireless system uses Shure bodypacks, this version is very likely the correct one to order - but it is always worth verifying your specific transmitter model before purchasing.

If your wireless system uses a different connector - such as a Sennheiser-style 3.5 mm locking connector, or a LEMO connector - THOR offers the SH20 in MicroDot cable configurations with the appropriate adapter for your system, or hardwired options. The MicroDot system uses a small threaded connector at the headset end and then attaches to a separate adapter that terminates in the connector your transmitter requires.

This microphone is designed for indoor use only. It is not rated for outdoor or high-moisture environments. If your application involves performers who sweat heavily or environments with high humidity, consider asking GearTechs about care and maintenance best practices to protect your investment.

Not sure which version or connector you need? Contact GearTechs before ordering and our team will help ensure compatibility with your exact system.

Suggested Related Products

• THOR Shadow SH20 - Tan (TA4F): Same microphone in a lighter color for lighter skin tones
• THOR Shadow SH20 - Black (TA4F): Same microphone in black, ideal for dark hair or high-contrast stage looks
• THOR Shadow SH20 MicroDot versions: For wireless systems using Sennheiser, Lectrosonics, or LEMO connections
• Replacement windscreens: Keep spares on hand for shared or frequently used microphones
• Replacement cable clip: Useful for managing cable routing under clothing
• Wireless bodypack transmitter (Shure TA4F compatible): Pairs with Shure BLX, GLXD, SLX-D, ULX-D, Axient and QLX-D series
• Additional protective carrying case: For teams managing multiple headset microphones