The YESIDO KR21 is a wireless lapel microphone system for Type-C devices, designed for content creators, streamers and professionals who need clear, low-latency audio without a recording interface.
Why you'll like it
- AI and DSP noise reduction filters steady and variable environmental noise for clean vocal capture
- 25ms transmission latency for near-real-time audio feedback during live streaming and video calls
- 48KHz/16bit sampling rate with 98dB signal-to-noise ratio for professional-grade audio quality
- Two transmitters and one receiver included — two-person interview setup out of the box
- 750mAh charging case extends mic usage microphone charges in approximately 1.5 hours
Designed as
The YESIDO KR21 is a wireless lapel microphone system for Type-C devices, designed for content creators, streamers and professionals who need clear, low-latency audio without a recording interface.
Key features
- Material: ABS
- Frequency Range: 2.4GHz
- Sampling Rate: 48KHz 16bit
- Transmission Delay: 25ms
- Charging Voltage: DC 4.8V-5.4V
- Charging Current: TYPE-C 5V/1A (MAX)
- Battery Capacity: Microphone: 90mAh, Charging Case: 750mAh (Lithium Polymer)
- Microphone Usage Time: Approx. 7 hours
- Charging Time: Approx. 1.5 hours
- Microphone Sensitivity: -38 dBFS (Silicon Microphone)
- Working Current: 58-65mA
- Charging Interface: TYPE-C DC5V/1.5A (MAX)
- Colour: Black
Best for
Voice recording, video creation or calls with a compatible device.
What's included
- 2 x Transmitter
- 1 x Receiver
- 1 x Charging Cable
- 1 x English Instruction Manual
- 1 x Charging Case
Compatibility and setup
The KR21 receiver plugs directly into a Type-C port. Charging interface: Type-C 5V/1.5A max. Frequency: 2.4GHz.
Why choose the YESIDO KR21?
The KR21 delivers 48KHz/16bit audio with AI noise reduction and 25ms latency in a plug-and-play Type-C format — with two transmitters and a charging case included. For content creators who need clean wireless audio without an audio interface, the KR21 is a capable and practical choice.
What is the latency of the YESIDO KR21 wireless mic?
The KR21 has a 25ms transmission delay between transmitter and receiver — low enough for real-time monitoring during live streaming and video calls without noticeable audio sync issues.
How long does the YESIDO KR21 battery last?
Each 90mAh transmitter provides approximately 7 hours of working time per charge. The included 750mAh charging case recharges both transmitters and the receiver. Charging time is approximately 1.5 hours.
Does the YESIDO KR21 have noise cancellation?
Yes. The KR21 uses AI and DSP noise reduction via the AI7131A + AI7187C chipset, filtering both steady background noise and variable environmental noise to preserve clear vocal audio. The signal-to-noise ratio is 98dB.
| Specification | Details |
|---|---|
| Brand | YESIDO |
| Model | KR21 |
| Connection | Type-C plug (receiver) |
| Frequency | 2.4GHz |
| Sampling Rate | 48KHz / 16bit |
| Transmission Latency | 25ms |
| Signal-to-Noise Ratio | 98dB |
| Microphone Sensitivity | -38 dBFS (silicon microphone) |
| Noise Reduction | AI + DSP (AI7131A + AI7187C chip) |
| Transmitter Battery | 90mAh, approx. 7 hours |
| Charging Case Battery | 750mAh (Li-polymer) |
| Charge Time | Approx. 1.5 hours |
| Charging Input | Type-C 5V/1.5A max |
| Contents | 2 × transmitters, 1 × receiver, 1 × charging case |
| Certifications | CE-RED, CE-RoHS |
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