ULANZI A21 Drawer Wireless Microphone: Tiny Size, Big Sound with AI Noise Cancellation & 36-Hour Battery
Professional audio in a button-sized package. The ULANZI A21 Wireless Microphone redefines portable audio capture with its ultra-compact design, weighing just 8g and fitting discreetly on any collar. Yet despite its tiny size, it delivers exceptional sound quality with 32kHz/24-bit sampling, AI-powered noise cancellation, and 360° omnidirectional pickup. Perfect for iPhone 15/16/17 users, Android smartphones, and content creators, this complete system features two transmitters, a convenient drawer-style charging case, and a receiver with pass-through charging. With up to 36 hours of total battery life, 100-meter wireless range, and versatile wearing options, the A21 ensures you’re always ready to capture crystal-clear audio. Top Tech Zone guarantees 100% authentic products backed by an official warranty.
Tiny Size, Big on Sound
Button-sized transmitters that deliver pro-grade audio.
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Ultra-Lightweight Design: Each transmitter weighs just 8g—so light you’ll barely notice it, allowing for total comfort during long recording sessions.
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Button-Sized Form Factor: Discreet and unobtrusive, perfect for on-camera appearances where you want the microphone to disappear.
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Multiple Wearing Options: Includes magnetic clip, collar clip, and necklace strap for versatile placement on any outfit.
Pro-Grade Sound Quality with AI Noise Cancellation
Capture every detail with exceptional clarity.
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32kHz/24-Bit High Sampling: Captures subtle vocals and rich ambient sound with remarkable detail and accuracy.
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20Hz–20kHz Frequency Response: Full-spectrum audio reproduction for natural, lifelike sound.
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AI Noise Cancellation: Advanced algorithms reduce unwanted background noise while keeping your voice natural and clear—ideal for noisy environments, outdoor recordings, and crowded events.
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Furry Windscreen Included: Blocks wind noise for cleaner outdoor recordings.
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360° Omnidirectional Pickup: Highly sensitive capture delivers crisp, lifelike sound from all directions, putting you right in the moment.
Full-Depth Audio with One-Tap Effects
Enhance your sound instantly with creative audio modes.
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Single Tap Control: Press the button to switch between four modes:
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Noise Reduction Mode: Clean, professional audio for clear communication
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Original Mode: Unprocessed natural sound
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Reverb Mode: Adds rich, 3D-like depth to make live streams more immersive
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Mute Mode: Instant privacy when needed
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Wireless Transmission Up to 100 Meters
Freedom to move without compromising audio quality.
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2.4GHz Digital Wireless Transmission: Delivers stable, interference-free audio with low latency.
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100-Meter Range (Open Space): Perfect for large events, outdoor recordings, interviews, and dynamic content creation.
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Reliable Connection: Consistent audio sync even with movement and obstacles.
36-Hour Total Battery Life with Smart Charging Case
Power that keeps up with your longest shoots.
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6 Hours per Microphone: Each transmitter provides ample runtime for extended recording sessions.
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Charging Case Provides Two Full Recharges: Total runtime of approximately 36 hours—enough for all-day shoots and multi-day projects.
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Drawer-Style Design: Convenient press-to-pop charging case makes it easy to store, charge, and access your microphones.
More Reasons to Choose A21
Innovative features designed for content creators.
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Instant Playback: Video playback without unplugging or plugging the receiver—monitor your recordings instantly.
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Dual Mic Recording: Record two people simultaneously with the included pair of transmitters.
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Record While Charging: Receiver features an extended charging port, supporting simultaneous recording and phone charging—perfect for long livestreams and extended shoots.
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Easy-to-Use Design: Simple drawer design with press-to-pop access—no fumbling, no stress.
What’s in the Box
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Receiver ×1
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Charging Case ×1 (drawer-style with built-in battery)
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Transmitter ×2 (button-sized with 8g each)
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Furry Windscreen ×2
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Lanyard ×2
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Clip ×2
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Magnet ×2
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Charging Cable ×1
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User Manual ×1
Complete Product Specifications
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Brand: ULANZI
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Model: A21 Wireless Microphone (XCP-A053-US2)
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Transmitter Weight: 8g (ultra-lightweight)
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Sampling Rate: 32kHz / 24-bit
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Frequency Response: 20Hz – 20kHz
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Noise Cancellation: AI-Powered Intelligent Noise Reduction
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Pickup Pattern: 360° Omnidirectional
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Wireless Technology: 2.4GHz Digital Transmission
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Wireless Range: Up to 100 meters (open space)
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Transmitter Battery Life: Up to 6 hours each
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Total Battery Life: Approximately 36 hours (with charging case)
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Audio Effects: Noise Reduction, Original, Reverb, Mute (one-tap switching)
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Connector Type: USB Type-C
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Compatibility: iPhone 15/16/17, Android Smartphones (Type-C), and other USB-C devices
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Special Features: Instant Playback, Dual Mic Recording, Record While Charging, Drawer Charging Case, Multiple Wearing Options (Clip, Magnet, Lanyard)
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Included Components: Receiver, Charging Case, 2 Transmitters, 2 Furry Windscreens, 2 Lanyards, 2 Clips, 2 Magnets, Charging Cable, User Manual
Your Guarantee of Authenticity
When you choose Top Tech Zone, you choose confidence. This microphone system is:
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100% Authentic: Guaranteed genuine ULANZI product with full manufacturer specifications.
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Backed by an Official Warranty: We ensure complete support for your purchase.
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Engineered for Creators: From AI noise cancellation to 100-meter range, every feature is designed for professional content creation.
Capture professional audio with button-sized convenience. Click ‘Add to Cart’ to get your authentic ULANZI A21 Wireless Microphone System today, only from Top Tech Zone.
Shop 100% Authentic Gadgets with Warranty: ttzbd.com.
















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