The YESIDO KR20 is a 2.4GHz wireless lapel microphone system with a Lightning plug receiver and two clip-on transmitters, designed for iPhone audio recording. The AI7131A and AI7187C chips handle transmission and noise cancellation, delivering 48KHz/16-bit audio at 25ms latency with a 98dB signal-to-noise ratio. Each transmitter has a 90mAh battery providing up to 7 hours of recording. The 750mAh charging case recharges the transmitters in approximately 1.5 hours. A Karaoke mode allows live audio monitoring during recording. Curated by Aetheo for everyday content creation and calls.
Why you'll like it
- 2.4GHz wireless — low-interference transmission vs Bluetooth; connects directly via Lightning plug with no app pairing
- Two transmitters included — dual lapel mic system for interviews and two-person recording
- 25ms latency for near-real-time audio sync with video recording
- 48KHz/16-bit audio with 98dB SNR for clear, high-fidelity recording
- 7 hours per transmitter charge; 750mAh charging case for top-ups
Designed for iPhone content creation and interviews
The KR20 plugs directly into the iPhone Lightning port and receives audio wirelessly from up to two clip-on transmitters simultaneously — removing the need for a long cable from the mic to the phone. The 2.4GHz transmission operates independently of Bluetooth, with no pairing process and no app required. AI noise cancellation reduces background noise at the recording source on each transmitter. Karaoke mode passes audio to the device speaker during recording, allowing the subject to hear themselves in real time. Curated by Aetheo for practical content creation and call use.
Key features
2.4GHz wireless, Lightning plug receiver
The KR20 transmits over 2.4GHz rather than Bluetooth — a dedicated wireless frequency that avoids the interference and pairing overhead of Bluetooth audio. The Lightning plug receiver inserts directly into the iPhone charging port with no driver installation, pairing process or app required. Two transmitters can be active simultaneously.
AI noise cancellation — AI7131A + AI7187C chips
The AI7131A transmitter chip and AI7187C receiver chip handle the noise cancellation processing on each transmitter, isolating the speaker's voice from ambient background noise at the recording source before transmission. The result is cleaner audio at the iPhone without relying solely on post-processing.
48KHz/16-bit, 98dB SNR, 25ms latency
The system records at 48KHz sample rate and 16-bit depth — the standard specification for broadcast and professional audio. The 98dB signal-to-noise ratio indicates low noise floor. 25ms end-to-end latency keeps audio sync with video practical for direct recording without post-production correction.
7-hour transmitter battery, 750mAh charging case
Each transmitter has a 90mAh battery providing up to 7 hours of recording on a single charge. The 750mAh charging case recharges the transmitters in approximately 1.5 hours from empty and stores both transmitters securely between sessions.
Karaoke mode
Karaoke mode passes the live microphone audio through to the iPhone speaker during recording, allowing the person being recorded to hear their own voice in real time. This is useful for monitoring audio quality during a session or for live performance scenarios where audio feedback to the subject is needed.
Best for
- iPhone content creators who want a wireless lapel mic for solo or interview recording
- Vloggers and journalists recording two-person conversations simultaneously with dual transmitters
- Those who want low-latency 2.4GHz wireless audio without Bluetooth pairing complexity
- Anyone who needs 7+ hours of recording time from a compact clip-on transmitter
- iPhone users who want a direct Lightning plug receiver without an adapter or dongle
What's included
- 2 × KR20 clip-on wireless transmitters
- 1 × Lightning plug receiver
- 1 × 750mAh charging case
- 1 × Charging cable
- 1 × English user manual
Compatibility and setup
Receiver connection: Lightning plug (iPhone only). Wireless: 2.4GHz (not Bluetooth). Chips: AI7131A (TX) + AI7187C (RX). Audio: 48KHz/16-bit. SNR: 98dB. Latency: 25ms. Transmitter battery: 90mAh each (up to 7 hours). Charging case: 750mAh (approx. 1.5hr charge time). Noise cancellation: AI on-transmitter. Karaoke mode: yes. Transmitters: 2. Receiver: 1.
Why choose the YESIDO KR20?
The KR20 delivers 2.4GHz wireless audio at 48KHz/16-bit, 98dB SNR and 25ms latency via a Lightning plug receiver — a dual-transmitter lapel mic system for iPhone content creators who want no-pairing wireless recording with 7-hour battery life, AI noise cancellation and a Karaoke m
| Specification | Details |
|---|---|
| Brand | YESIDO |
| Model | KR20 |
| Receiver Connection | Lightning plug |
| Wireless Frequency | 2.4GHz |
| Chips | AI7131A (TX) + AI7187C (RX) |
| Audio Quality | 48KHz / 16-bit |
| SNR | 98dB |
| Latency | 25ms |
| Noise Cancellation | AI on-transmitter |
| Transmitter Battery | 90mAh each (up to 7 hours) |
| Charging Case Battery | 750mAh |
| Case Charge Time | Approx. 1.5 hours |
| Karaoke Mode | Yes |
| Transmitters Included | 2 |
| Receiver Included | 1 |
| Compatibility | iPhone (Lightning port) |
