







- Stock: In Stock
- Model: A100
- Dual-transmitter single-cycle charging
- Stable Bluetooth 5.3 + EDR
- Lightweight 9.6g ultra-portable design
- Lightweight 9.6g ultra-portable design
Audio | |
Frequency Response | 20Hz-20kHz |
Noise Cancellation | 3 Level Noise Reduction Supported |
Sensitivity | -38±2dB |
Sound Quality Features | Mono Sound Field |
Polar pattern | Omnidirectional |
Compatibility | |
Supported | Smartphones, Cameras |
General | |
Best For | |
Product Dimensions | 48x25x13mm / 1.9x1x0.5 inches |
Product Weight | 9.6g |
Special Features | |
Networking/Communications | |
Bluetooth | Bluetooth 5.3 + EDR |
Wireless Connectivity | Yes (up to 20 meters via Bluetooth) |
Ports & Slots | |
Connector type | Type-C, Lightning (Adapters Included) |
USB Port | Type-C |
Warranty & Disclaimer | |
Packaging Contents | |
Warranty | 6 Months |
Performance | |
Form Factor | Lavalier Microphone |
Power Supply | Built-in Battery (3.7V / 800mAh / 2.96Wh) |
Type | Wireless Microphone |
Ulanzi A100 Wireless Lavalier Microphone: The Budget-Friendly Secret to Clean Audio

The Ulanzi A100 Wireless Lavalier Microphone proves that professional-grade audio doesn't require a hefty investment. With features like a 32kHz sampling rate and an impressive 20Hz to 20kHz frequency response range, this budget-friendly microphone delivers clean audio that rivals more expensive options. Whether you're recording on smartphones, cameras, or laptops, this versatile microphone offers practical solutions for content creators. In fact, its Bluetooth 5.3 connectivity, three-level noise reduction, and 20-meter transmission range make it a compelling choice for various recording scenarios. We'll explore how this affordable microphone performs in real-world situations, examine its key features, and help you decide if it's the right choice for your content creation needs.
Features of the Ulanzi A100 Wireless Lavalier Microphone
Looking beyond the affordable price tag, the Ulanzi A100 comes packed with features typically found in more expensive systems. At the core of this setup is a dual-receiver synchronization system that allows for precise audio capture from two different sources simultaneously. This makes it perfect for interviews and two-person vlogs without requiring additional equipment. Storage and power management stand out with the all-in-one charging case. The system offers impressive battery performance – transmitters provide approximately 5 hours of continuous use, while the receiver delivers about 4 hours on a single charge. With the included charging case, total operational time extends to roughly 13.5 hours, ensuring you stay powered through extended shoots. Connectivity is another strong point of the A100. The system includes both USB-C and 3.5mm adapters, making it compatible with Android devices, iOS products (with USB-C ports), and cameras. This plug-and-play functionality eliminates the need for additional apps or complex setup procedures. The Ulanzi A100's physical design prioritizes discretion and comfort. Weighing just 8.8g per transmitter, these tiny mics can be easily attached to clothing using either the integrated clip or included magnetic mount. This ultra-compact form factor allows the microphone to sit flat against clothing, making it remarkably unobtrusive during filming.
Audio quality benefits from several technical advantages:
- Omnidirectional condenser microphone providing 360° sound pickup
- Three-level noise reduction system to minimize ambient sounds
- Bluetooth 5.3+EDR technology with 20-meter wireless range
- 32kHz 16-bit sampling rate with 20Hz-20kHz frequency response
- Low latency of just 30ms to keep audio in sync with video
Performance Review: Is It Really Clean Audio on a Budget?
When put to the test, the Ulanzi A100 delivers remarkably clean audio considering its price point. The flat frequency response (20Hz-20kHz) captures vocals naturally without artificial coloration. I tested the mic in different environments and found its omnidirectional pattern consistently picks up sound from all angles while maintaining clarity. Notably, the three-level noise reduction system works effectively to minimize ambient sounds. During outdoor testing, the included windscreen proved essential, successfully suppressing wind noise that typically plagues budget microphones. Furthermore, the intelligent noise reduction module automatically filtered background noise at varying intensity levels, making it suitable for both controlled studio environments and noisier outdoor settings. The wireless performance impressed me as well. With Bluetooth 5.3+EDR technology, the A100 maintained a stable connection throughout the advertised 20-meter range. Despite occasional obstacles between transmitter and receiver, the signal remained consistent with minimal dropouts. The 30ms latency is practically imperceptible, ensuring audio stays perfectly synced with video. Battery life holds up to real-world demands. Each transmitter lasted the full promised 5 hours on a single charge, while the receiver delivered around 4 hours before needing a recharge. The charging case extends total operation time to approximately 13.5 hours, sufficient for most filming sessions without interruption. Sound quality surpasses expectations for a budget microphone. The 32kHz/16-bit sampling rate captures detailed audio that sounds professional even in challenging acoustic environments. The signal-to-noise ratio of ≥58dB ensures clean recordings with minimal background hiss. The A100's performance particularly shines in interview settings, vlogging, and livestreaming applications. Its crystal-clear voice reproduction, combined with the omnidirectional pickup pattern, creates professional-sounding results that rival more expensive systems. Consequently, for content creators on a budget, this microphone offers exceptional value without compromising on essential audio quality.
Is It the Right Mic for You? Use Cases and Alternatives
After examining who benefits most from this device, I've found the Ulanzi A100 shines primarily as a versatile solution for specific content creators. This compact system excels in multiple recording scenarios, making it worth considering based on your particular needs .Content creators including vloggers, streamers, and YouTubers will appreciate its plug-and-play functionality that requires no additional apps. The A100's lightweight design—only 8.8g per transmitter—makes it ideal for on-the-go recording without cumbersome equipment. Educational content creators benefit too, as the microphone provides clear audio for lectures and online courses. For interview situations, the dual-transmitter setup truly stands out. With two transmitters and a dual-channel receiver, you can easily conduct two-person interviews without additional equipment. This feature, combined with the 20-meter wireless range, offers considerable flexibility for collaborative content. The A100 excels in multiple environments thanks to its omnidirectional polar pattern that captures sound equally from all directions. Moreover, the three-level noise reduction system effectively minimizes background noise, making it suitable for both controlled indoor settings and challenging outdoor locations. Regarding device compatibility, the Ulanzi A100 works seamlessly with various equipment through its included adapters. It supports Android devices, USB-C iOS devices, and cameras, though some phones may require enabling OTG functionality. For those considering alternatives, Ulanzi offers several options at different price points. The Ulanzi WM-10 provides a more budget-friendly option with 4.5-hour battery life and noise reduction capabilities. Alternatively, the Ulanzi HM2301 offers dual-channel functionality with the ability to connect multiple devices simultaneously. Ultimately, the Ulanzi A100 represents an excellent balance of affordability, quality, and versatility for creators seeking professional-sounding audio without significant investment.
Conclusion
After extensive testing and real-world use, the Ulanzi A100 proves that professional audio quality doesn't require deep pockets. This compact wireless system delivers clean, reliable sound that matches the performance of pricier alternatives while offering practical features like dual-transmitter capability and effective noise reduction. Though budget-friendly, the A100 doesn't cut corners where it matters. The combination of long battery life, stable Bluetooth connectivity, and versatile device compatibility makes it a practical choice for content creators at any level. My experience shows it particularly excels in vlogging, interviews, and educational content creation. Sure, you might find wireless microphones with more advanced features or slightly better specs, but the A100 hits the sweet spot between affordability and performance. Based on my testing, this microphone system offers everything most content creators need to capture clean, professional audio without breaking the bank.