NTT Sonority Launches SonoVo Stick, a Tiny Wearable Microphone Built for Noisy Workplaces
NTT Sonority has started selling the SonoVo Stick in Japan, a compact wearable microphone designed to make hands-free communication clearer in extremely noisy environments. Built for places such as factories, construction sites, event venues, retail floors, hospitality settings, and other busy workplaces, the device aims to solve a common problem: staying connected when background noise makes normal conversation almost impossible.
The SonoVo Stick is small, lightweight, and designed to clip onto clothing using a magnetic attachment. Weighing just 29 grams, it is meant to be worn comfortably during long shifts without getting in the way. It connects via Bluetooth 5.3 and is built around two MEMS microphones paired with NTT’s patented Magic Focus Voice technology.
This voice-processing system uses directional beamforming and noise-filtering techniques to separate the speaker’s voice from surrounding sound. Instead of capturing every sound equally, the microphone focuses more directly on the person speaking, helping reduce the impact of loud machinery, crowds, traffic, and other workplace noise.
According to NTT Sonority, the SonoVo Stick can maintain understandable voice communication even in environments where noise levels exceed 100 dB. That makes it especially useful for industrial sites, large venues, and other demanding locations where workers need to communicate clearly while keeping both hands free.
The device offers three recording modes to match different working situations. One mode is optimized for close-range speech when the microphone is held near the mouth. Another is intended for hands-free use when the device is attached to clothing. A third mode captures a wider sound field, allowing environmental sounds to be recorded along with speech when situational awareness is important.
The SonoVo Stick is also built with practical workplace use in mind. It has IP54-rated protection against dust and splashes, making it suitable for tougher environments. A large push-to-talk button is designed to remain usable even while wearing work gloves, giving it a familiar feel similar to a traditional walkie-talkie.
Battery life is rated at up to 15 hours, enough for a full workday in many professional settings. Charging is handled through USB-C, making it easy to recharge with modern cables and power adapters.
NTT Sonority also supports integration with workplace communication platforms such as BONX WORK and LINE WORKS. In addition, the company’s SonoVo AI platform can be used to process recorded workplace conversations, potentially helping businesses manage communication records, transcription, and audio analysis more efficiently.
One key point to note is that the SonoVo Stick is not a complete headset. It is a microphone-focused communication device. Users who want to connect headphones can do so through a 3.5mm jack.
The SonoVo Stick is priced at ¥24,000 in Japan, which is roughly around $150 before tax. However, it is not being sold through a standard online checkout process. Interested buyers need to submit a purchasing inquiry to obtain the device.
With its ultra-light design, strong noise-isolation technology, Bluetooth connectivity, and rugged workplace-friendly features, the SonoVo Stick is positioned as a practical communication tool for professionals who need clear voice pickup in loud, fast-moving environments.
