Theos Digital Wireless – US

Quick Look

As a filmmaker, one of the most important aspects of your work is sound. There is nothing more frustrating than discovering that your audio is unusable due to interference, dropped signals or other issues. This is where the Deity Theos Digital Wireless Microphone System comes in. This state-of-the-art system is designed to make your audio recording process seamless and stress-free.

  • Dual Channel Receiver
  • Global OneBand™ technology; 550-960 MHz*
  • Built-in 32-bit float alternative recorder in the transmitter
  • Recordings are saved to a Micro SD card; up to 128Gb
  • Both the transmitter and receiver can be remotely controlled via the Sidus Audio™ app
  • Up to 14hrs of battery life with Deity-branded lithium batteries
  • Full-color LCD screen
  • CNC-milled aluminum chassis
  • SMA antenna ports

*actual frequency band size will be limited to local country laws and regulations




All Theos Digital Wireless – US features

Global OneBand™ Technology

One of the standout features of the Deity Theos Digital Wireless Microphone System is its use of a wideband UHF spectrum rather than the crowded 2.4Ghz band. Frequencies span between 550-960 MHz.*

Theos Digital Wireless also features swappable frequency ranges based on your phone’s GPS / Firmware Update. Now you can travel the world with one wireless microphone kit.

*Actual spectrum is limited by local laws. See your government's rules on RF spectrum for wireless microphones.


Ultra Wideband Frequencies

All Theos Digital Wireless (US Model) devices will support multiple bands in the US for a total of 96 MHz of available spectrum.

550-608 MHz UHF TV Band
614-616 MHz Guard Band
653-663 MHz Duplex Gap
902-928 MHz ISM Band

Intermod-Free Transmission

Thanks to the THEOS system using digital RF modulation, the system is intermod-free. Unlike analog wireless microphones that create harmonics, the RF signal of a THEOS transmitter only creates a single spike.

When it comes to coordinating frequencies, simply space out your transmitter's frequencies 700kHz apart. THEOS makes using multiple channels of wireless easy.

Digital vs Analog UHF Intermodulation Chart

Built-in Recorder

Sometimes you just can't use wireless. Especially when you're shooting in sensitive RF situations or in regulated areas like national sporting events. This is what sets the Theos ecosystem apart.

The DBTX features a built-in recorder*, which allows you to use your DBTX US as a recorder rather than as a transmitter. The onboard recorder allows either 24-bit and 32-bit float formats. Recordings are saved to a Micro SD card, up to 128Gb in size, providing ample space for your audio recordings.

The built-in recorder features an impressive EIN self-noise of -130dBu (A-weighting, gain at +30dB, 150ohm source impedance). This puts it on par with some of the most expensive audio recorders in the film industry.

*Units sold in the USA and/or operated inside the USA can not transmit and record.

Wireless Timecode Sync

The DBTX’s most unique feature is it's recorder can be synced wirelessly from the Deity TC-1 timecode generator. This feature is especially useful for filmmakers who need to work with multiple cameras or devices. It ensures that your audio and video files are perfectly synced, thus making the editing process much smoother.

Alternatively, the DBTX can be synced via the 3.5mm jack if you are using 3rd party timecode generators.

Full Color LCD Screen

One of the standout features of the Theos Wireless System is its full-color LCD screen, which displays the status of the device. This screen makes it easy to monitor the system's performance, ensuring that you always have a clear view of your audio levels, battery life, and other critical information. This feature is especially useful for filmmakers who need to work in various locations and lighting conditions.

CNC Milled Aluminum Body

Both the DBTX and D2RX are made out of 2 blocks of CNC milled Aluminum. The result is a transmitter that only weighs 100 grams (3.5 oz.)

SMA Antenna Ports

Both the DBTX and D2RX come with SMA antenna ports, which allow you to swap out antennas to fine-tune your frequency or replace them if they get damaged. This feature makes transporting your gear more compact in its case, which is especially useful when working on location.

Up To 14Hrs of Battery Life

Theos Digital Wireless is capable of getting up to 14hrs of battery life* when paired with the 3000mAh Deity AA battery.

The D2RX and DBTX are also able to be externally powered via their USB-C ports.

NiMH ~ Up to 8.5Hrs
Lithium ~ Up to 14Hrs

*DBTX set to 10mW, screen off, recorder off, and Bluetooth enabled

DBTX Battery Life

When running your transmitter at max settings* you can except to easily make it to lunch and beyond.

*Minus record and transmit

D2RX Battery Life

The D2RX will run for nearly 7hrs using rechargeable AA batteries. This makes running the D2RX super affordable for daily use.

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Remote Control via Sidus Audio App

The app allows you to perform frequency scanning and frequency assignment, frequency coordination between multiple receivers, gain staging, and remote triggering of the backup recorder. This means you can make adjustments to your audio settings without having to physically touch the device, making it easier to work with when you're on set.

The remote control feature is especially useful for filmmakers who need to work with multiple devices or those who need to make adjustments to their audio settings quickly. It saves time, and it ensures that you never miss a critical moment on set.


RF Modulation: Proprietary Digital RF Modulation
RF Power - 10mW, 25mW, 50mW, 100mW
RF Spectrum - 550 ~ 960Mhz*
RF Frequency Step:100KHz
RF Spacing: 700KHz
Antenna Connector: 50 Ω SMA
Dynamic Range: 123dB
Distortion: <0.5%
Frequency Response: 20~20KHz
Low Cut: 0FF/75Hz/100Hz/150Hz
Mic Power: MIC-3V、MIC-5V, LINE
Mic Connector: 3.5mm TRS
Input Gain: 0~+30dBV
ADC Bit-Depth: 24
ADC Sampling-Rate:48
Dimensions(H x Wx D): 88.45x 65x17.8 mm
Operational Temp: -20°C ~ +45°C
Timecode Reader / Generator:
Clock Accuracy: 0.15 PPM (1 Frame Out in 72 Hours)
Timecode Type: LTC(SMPTE)
Timecode Frame-Rates: 23.98, 24, 25, 29.97, 29.97DF, 30, 30DF
Internal Recording:
Media: MicroSD Card (Flash Memory)
File Format: .wav BWF
Record Format:24 / 32bit float
EIN: -132dBV (-130dBu) max (A-weighting, gain= 30dB, 150ohm source impedance)
RF Frequency Step:100KHz
RF Spacing: 700KHz
Antenna Connector: 50 Ω SSMA
Sensitivity: -95dBm
Latency: 6.3ms
Dimensions(H x Wx D): 89.47x66.81x20.06mm
Operational Temp: -20°C ~ +45°C
Receiver Audio: Analog Output (x 2)
Dynamic Range:103dB
Distortion: <0.5%
DAC Bit-Depth:24
Output Type: Mono, Stereo, Headphone
*Actual spectrum is limited by local laws. See your government's rules on RF spectrum for wireless microphones


3.5mm Input Pinout

Tip – Signal (3V Bias, 5V Bias, Line, or TC)

Ring – Float

Sleeve – Ground

Headphone Out Pinout

Tip – Signal

Ring – Signal

Sleeve – Ground


NOTE: This is a headphone-level signal. A headphone signal output is intended to drive headphones, delivering a higher voltage level and accommodating low-impedance headphones directly. This is not a line-level signal.