Sony UWP-D27 wireless kit in the K33 band (566.025–630.000 MHz) for two speakers: two UTX-B40 bodypack transmitters, two ECM-V1BMP omnidirectional lavalier microphones and the URX-P41D two-channel receiver. Easy to use, clean-sounding and connected to Sony cameras and camcorders without a cable through the optional SMAD-P5 adaptor.
Sony UWP-D27 wireless kit in the K33 band (566.025–630.000 MHz) for two speakers: two UTX-B40 bodypack transmitters, two ECM-V1BMP omnidirectional lavalier microphones and the URX-P41D two-channel receiver. Easy to use, clean-sounding and connected to Sony cameras and camcorders without a cable through the optional SMAD-P5 adaptor.
The URX-P41D receiver picks up both transmitters at once and sends each channel to its own output, OUTPUT 1 and OUTPUT 2. A conversation between two people can therefore be recorded on two separate tracks.

Hold the UTX-B40 bodypack transmitter to the receiver by its N-Mark and NFC SYNC transfers the channel setting. The transmitter has an OLED display, runs on two AA batteries or over USB-C and lasts about 8 hours at 30 mW.
The optional SMAD-P5 Multi Interface Shoe adaptor seats the receiver in the shoe of a compatible Sony camera or camcorder. Audio goes into the camera digitally without A/D and D/A conversion, the receiver is powered by the camera and its status shows in the viewfinder.
The receiver has its own MIC INPUT for a plug-in power microphone or a Sony lavalier microphone with a BMP connector. Its signal can go to output 1, output 2 or both.
Two receiver sections keep the signal stable; in single-channel operation the receiver works in true diversity.
The output adjusts over ±12 dB in 3 dB steps, and HIGH GAIN mode helps devices that need more gain.
The receiver handles the UWP-D, UWP and WL800 compander modes and pairs the earlier UTX-B03, UTX-M03 and UTX-P03 transmitters by infrared.
Transmitters and receiver run on two AA batteries or from a power bank over USB-C; the receiver lasts about 4.5 hours on alkaline batteries.
UWP-D27 wireless kit for two speakers
The UWP-D27 is a complete wireless audio kit for on-camera interviews, live presentations and any situation where you need to capture crisp, clear sound with minimum fuss. The ECM-V1BMP omnidirectional lavalier microphone connects to the light, compact UTX-B40 bodypack transmitter worn by the interviewee. Audio travels wirelessly to the URX-P41D two-channel receiver, and transmitter and receiver pair quickly and easily. The kit contains two transmitters and two microphones, so the receiver picks up two speakers at once. The optional SMAD-P5 Multi Interface Shoe adaptor simplifies recording with compatible Sony cameras and camcorders.
Backward compatibility with IR sync
The URX-P41D receiver has an infrared port, so in the UTILITY menu you can choose NFC or IR pairing under SYNC MODE. Owners of the earlier UTX-B03, UTX-M03 and UTX-P03 transmitters can pair them with the receiver by infrared.
Receiver with variable output level
To suit the different inputs of camcorders and digital SLR cameras, the receiver output level can be varied over a range of ±12 dB. The new HIGH GAIN mode helps with devices that need more gain.
Diversity reception for stable audio
Two independent receiver sections deliver a clean signal and stable, dropout-free reception. In single-channel operation the receiver works in true diversity, in two-channel operation with antenna diversity.
Fast channel setting
The NFC SYNC function pairs the channel between the UTX-B40 bodypack transmitter and the URX-P41D receiver quickly, conveniently and securely.
| Frequency version | K33 (33CE) |
|---|---|
| Carrier frequencies | 566.025–630.000 MHz (UHF-TV channels 33–40) |
| Oscillator type | crystal-controlled PLL synthesizer |
| Tone signal by compander mode | UWP-D 32.382 kHz · UWP 32 kHz · WL800 32.768 kHz |
| Pairing | NFC SYNC, IR SYNC |
| Operating temperature | 0 to 50 °C |
| Storage temperature | −20 to +55 °C |
| Antenna | 1/4 λ wire antenna |
|---|---|
| RF output level | 30 mW / 5 mW, selectable |
| Audio input connector | 3.5 mm 3-pole locking mini jack |
| Reference audio input level | −60 dBV (MIC input, GAIN MODE NORMAL, 0 dB attenuation) · +4 dBu (LINE input) |
| Attenuation | 0 to 27 dB (3 dB steps) |
| Frequency response | 23 Hz to 18 kHz (typical) |
| Signal-to-noise ratio | 60 dB (−60 dBV, 1 kHz input) · 102 dB (GAIN MODE AUTO GAIN, max.) · 96 dB (GAIN MODE NORMAL, max.) |
| Distortion (THD) | 0.9% or less (−60 dBV, 1 kHz input) |
| Audio delay | approx. 0.35 ms |
| Display | OLED |
| Power supply | DC 3.0 V (2× AA/LR6 alkaline batteries) · DC 5.0 V (USB-C) |
| Battery life | approx. 8 hours at 30 mW (2× alkaline AA, 25 °C, DISPLAY MODE AUTO OFF) |
| Dimensions (W × H × D) | 63 × 73 × 19 mm (excluding antenna) |
| Mass | approx. 83 g (excluding batteries) |
| Reception method | space diversity (true diversity in single-channel operation) |
|---|---|
| Antenna | 1/4 λ wire antenna, angle-adjustable |
| Frequency response | 23 Hz to 18 kHz (typical) |
| Signal-to-noise ratio | 60 dB (1 kHz sine wave, 5 kHz modulation) · 96 dB (1 kHz sine wave, max deviation) |
| Distortion (THD) | 0.9% or less (1 kHz sine wave, 5 kHz modulation) |
| Audio delay | approx. 0.35 ms (analogue output) · 0.24 ms (digital output) |
| Audio output connectors | OUTPUT 1 and OUTPUT 2: 3.5 mm 3-pole locking mini jack (balanced) · auxiliary connector for SMAD-P5 |
| Audio output level | −60 dBV (3.5 mm jack, analogue, OUTPUT MODE NORMAL) · −20 dBFS (auxiliary connector, digital) · −50 dBV (auxiliary connector, analogue) |
| Audio output level variation | −12 to +12 dB (3 dB steps) |
| MIC INPUT connector | 3.5 mm 3-pole locking mini jack, −50 dBV (INPUT LEVEL 0 dB) |
| Headphone output | 3.5 mm stereo mini jack, max. 10 mW (16 Ω) |
| Display | OLED |
| Power supply | DC 3.0 V (2× AA/LR6 alkaline batteries) · DC 5.0 V (USB-C) |
| Battery life | approx. 4 hours 30 minutes (2× alkaline AA, 25 °C, DISPLAY MODE AUTO OFF) |
| Dimensions (W × H × D) | 63 × 70 × 35 mm (excluding antenna) |
| Mass | approx. 159 g (excluding batteries) |
| Type | electret condenser microphone |
|---|---|
| Frequency response | 40 Hz to 20 kHz |
| Directivity | omnidirectional |
| Sensitivity | −43.0 dB ±3 dB (0 dB = 1 V/Pa, 1 kHz) |
| Cable | ⌀ 2.3 mm, 2-conductor shielded, 1.2 m long |
| Dimensions | ⌀ 6.8 × 19.5 mm (without cable and connector) |
| Mass | approx. 16.2 g |
| Manufacturer: | SONY |
| Category: | Wireless systems |
| Frequency band | UHF |
| Number of channels | 2 |
| Selectable frequencies | 10 Channel |
| Frequency range | 566.025–630.000 MHz |
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