Ulanzi A21 Wireless Microphone Black and White Lightning

The Ulanzi A21 Wireless Microphone (Black and White Lightning) is a button-sized, ultra-light wireless lavalier mic for iOS devices. Featuring 360 omnidirectional recording, AI noise reduction, and up to 100m wireless range, it delivers crystal-clear audio for vlogs, interviews, and live streams. With 6h runtime per transmitter and 30h total with the charging case, it's perfect for all-day recording.

The Ulanzi A21 Wireless Microphone (Black and White Lightning) brings professional audio quality to mobile content creators in a tiny, lightweight form factor. Each 8g button-sized transmitter clips discreetly to clothing, straps, or lapels, ensuring comfort and portability without compromising sound quality.

With 32kHz/24-bit sampling and 360 omnidirectional pickup, the A21 captures voices and ambient sounds with lifelike clarity. AI noise reduction filters unwanted background sounds, and included furry windshields protect recordings from wind interference, making it ideal for outdoor shoots. One-tap audio enhancement adds immersive 3D-like reverb for richer recordings.

Operating on the 2.4GHz band, the system maintains a stable connection up to 100m in open space, allowing for flexible movement during interviews, vlogs, or events. Each microphone runs up to 6h per charge, while the included charging case provides two full recharges, totaling 30h runtime. Lightweight and portable, the kit includes clips, magnets, carrying cords, and a USB charging cable, making it a plug-and-play solution for mobile iOS content creators.

Key Features

• Button-sized, ultra-lightweight wireless lavalier mic (8g)
• 360 omnidirectional recording
• AI-powered noise reduction for clear voice capture
• One-tap audio enhancement with immersive 3D-like reverb
• Up to 100m wireless range (open space)
• Up to 6h runtime per transmitter; 30h total with charging case
• Includes furry windshields, clips, magnets, carrying cords, and charging cable
• Plug-and-play operation for iPhone and iPad (Lightning connector)

• 1 Receiver
• 1 Charging Case
• 2 Transmitters
• 2 Furry Windscreens
• 2 Carrying Cords
• 2 Clips
• 2 Magnets
• 1 Charging Cable
• 1 User Guide

• Microphone Type: Wireless Lavalier
• Polar Pattern: 360 Omnidirectional
• Sampling Frequency / Bit Depth: 32kHz / 24-bit
• Signal-to-Noise Ratio: >58 dB
• Wireless Frequency: 2.4GHz
• Wireless Range: Up to 100m (open area)
• Battery TX: 3.7V 5A Li-ion, 6h runtime; Charging Case: 3.7V 400mAh, charges 2 transmitters twice
• Transmitter Dimensions: 28 x 26 x 13 mm
• Charging Case Dimensions: 93 x 38 x 32 mm
• Transmitter Weight: 8g
• Charging Case Weight: 49g
• Charging Time: 1.52h
• Operating Time: 6h per transmitter; 30h total with charging case