A21 Wireless Microphone(Black-Lightning) Ulanzi

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The Ulanzi A21 Wireless Microphone (Black-Lightning) is a compact, button-sized lavalier mic designed for iPhone and iPad devices. Featuring 360° omnidirectional recording, AI noise reduction, and up to 100 m wireless range, it provides crystal-clear sound for vlogging, interviews, and live streaming. With 6 h per transmitter and 30 h total runtime via the charging case, it’s perfect for all-day content creation.

The Ulanzi A21 Wireless Microphone (Lightning) combines portability, long-range wireless performance, and professional audio quality in a tiny, lightweight package. Weighing only 8 g, the button-sized transmitters clip discreetly to clothing, straps, or lapels without interfering with recording.

Equipped with 32 kHz/24-bit sampling and 360° omnidirectional sound capture, the A21 records voices and ambient sound with rich detail. AI-powered noise reduction eliminates unwanted background noise, while the included furry windshields protect against wind interference during outdoor shoots. With instant playback and 3D-like audio enhancement, creators can monitor and improve their recordings in real-time.

Operating on the 2.4 GHz band, the system delivers a stable connection up to 100 m in open spaces, making it suitable for interviews, outdoor events, or large venues. Each microphone runs up to 6 h per charge, and the included charging case can recharge the transmitters twice, providing approximately 30 h total runtime. With a full accessory kit including clips, magnets, carrying cords, and a charging cable, the Ulanzi A21 Lightning is a plug-and-play solution for professional content creators on the move.

Key Features:

• Button-sized wireless lavalier microphone for Lightning devices
• 360° omnidirectional sound capture
• AI-powered noise reduction
• Instant playback and optional 3D-like audio enhancement
• Up to 100 m wireless range (open space)
• Up to 6 h operation per transmitter; 30 h total with charging case
• Lightweight and compact (8 g per transmitter)
• Furry windshields included for outdoor recording
• Clips, magnets, and carrying cords included for versatile mounting
• Compatible with iPhone and iPad devices with Lightning ports

• 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: 32 kHz / 24-bit
• Signal-to-Noise Ratio: >58 dB
• Wireless Frequency: 2.4 GHz
• Wireless Range: Up to 100 m (open area)
• Battery: TX: 3.7 V 5 A Li-ion (~6 h); Charging Case: 3.7 V 400 mAh (2 full charges)
• Transmitter Dimensions: 28 × 26 × 13 mm
• Charging Case Dimensions: 93 × 38 × 32 mm
• Transmitter Weight: 8 g
• Charging Case Weight: 49 g
• Charging Time: 1.5–2 h
• Operating Time: 6 h per transmitter; 30 h total with case