Description
Sony UWP-D21 Camera-Mount Wireless Omni Lavalier Microphone System
The Sony UWP-D21 Camera-Mount Wireless Omni Lavalier Microphone System is a professional UHF wireless audio solution designed for filmmakers, broadcasters, and content creators who demand superior sound quality, reliability, and ease of use in the field. Combining Sony’s advanced UWP-D digital audio processing, true diversity reception, and lightweight construction, this system ensures natural, clear, and stable wireless transmission for ENG, interviews, documentaries, and event production.
High-Quality Digital Audio with Analog Reliability
At the core of the UWP-D21 system is Sony’s UWP-D digital audio processing technology, which delivers low-latency, crystal-clear sound reproduction comparable to wired microphones. Unlike conventional analog companding systems, UWP-D processing maintains the full dynamic range of the original signal, minimizing audio distortion and ensuring transparent, broadcast-quality sound.
The system operates within the UHF band, offering reliable transmission even in crowded RF environments. Its true diversity reception uses two antennas and two independent receiver circuits to reduce dropouts, providing consistent, interference-free performance.
- Audio Technology: UWP-D digital processing for pristine audio clarity
- Transmission Type: UHF analog with digital processing
- Frequency Range: 470.025 MHz – 541.875 MHz (region dependent)
- System Latency: Approximately 0.35 ms
- Reception Mode: True diversity
Complete Wireless Lavalier System
The UWP-D21 includes the URX-P40 camera-mount receiver, UTX-B40 bodypack transmitter, and the Sony ECM-V1BMP omnidirectional lavalier microphone, forming a complete, ready-to-use kit. The included lavalier microphone provides natural sound pickup with reduced handling noise, ideal for interviews, dialog, and presentations.
- Transmitter: UTX-B40 bodypack with locking 3.5mm input
- Receiver: URX-P40 dual-antenna camera-mount unit
- Microphone: ECM-V1BMP omni lavalier mic
- Mounting: MI shoe, cold shoe, or belt/pouch mounting
Fast, Simple Setup and NFC Sync
The UWP-D21 system is designed for quick deployment in the field. Its NFC (Near Field Communication) sync function allows instant pairing between the transmitter and receiver—simply hold them close together for automatic channel synchronization. The system’s auto-scan feature searches for the most stable frequencies available in your environment, reducing setup time and ensuring clean audio transmission.
- Auto Channel Scan: Automatically finds interference-free frequencies
- NFC Sync: One-touch pairing between transmitter and receiver
- Menu Display: High-contrast OLED screens for intuitive control
Compact, Lightweight, and Camera-Friendly
Weighing just 218 grams (combined), the UWP-D21 system is built for mobility and on-camera use. The URX-P40 receiver features a compact profile and can mount directly to Sony cameras via the MI (Multi Interface) Shoe for cable-free operation, transmitting audio and power seamlessly between devices. It’s also compatible with other DSLR and cinema cameras via the included cold shoe and output cables.
- Receiver Dimensions: 63 × 82 × 21 mm
- Transmitter Dimensions: 63 × 82 × 21 mm
- Weight (each): Approx. 90 g (without batteries)
- Mounting Options: MI shoe, cold shoe, or belt clip
Flexible Power and Connectivity
Both the transmitter and receiver operate on two AA batteries, offering up to 6 hours of continuous use. The receiver can also be powered directly via Sony’s MI Shoe or USB for extended runtime. The 3.5mm TRS output and XLR adapter cable (optional) provide flexible connectivity to cameras, recorders, and mixers.
- Power Supply: 2 × AA batteries or MI Shoe (receiver)
- Battery Life: Up to 6 hours (alkaline)
- Audio Output: 3.5mm TRS unbalanced / optional XLR adapter
- Operating Range: Up to 330 feet (100 meters) line-of-sight
Rugged Design for Professional Use
The UWP-D21 is built to withstand the rigors of professional production environments. Its metal chassis provides durability without added bulk, while weather-resistant construction ensures reliable operation in outdoor and on-location shoots. Both units feature high-contrast OLED displays for visibility in bright conditions and menu navigation via intuitive buttons and dials.
- Construction: Lightweight metal housing for durability
- Operating Temperature: 0°C to 50°C
- Display Type: OLED with adjustable brightness
Compatibility and Integration
The system integrates seamlessly with Sony camcorders, Alpha mirrorless cameras, and professional cinema cameras. When paired with compatible models via the MI Shoe, users can access additional functions such as audio level display on-screen, camera power sharing, and cable-free operation. The receiver is also compatible with third-party cameras using the supplied 3.5mm output cable.
- MI Shoe Support: Power and audio connection with compatible Sony cameras
- Third-Party Compatibility: Works with DSLRs, cinema cameras, and recorders
The Sony UWP-D21 Wireless Lavalier Microphone System delivers professional audio quality, robust wireless performance, and fast setup in a lightweight, camera-mountable package—making it the ideal solution for documentary filmmakers, journalists, and content creators who need reliable sound capture in any production environment.





