Ulanzi A21 Wireless Microphone, Black/White, Lightning Ulanzi

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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 100 m wireless range, it delivers crystal-clear audio for vlogs, interviews, and live streams. With 6 h runtime per transmitter and 30 h total with the charging case, it’s perfect for all-day recording.

Small microphone, big freedom

Two tiny transmitters for interviews, vlogs and live streaming on an iPhone or iPad with a Lightning connector.

2× TXLightning32 kHz / 24 bit100 m

Small microphone, big freedom

The A21 is a two-channel wireless microphone system for two people. Each transmitter weighs only 8 g and can be worn with a clip, magnet or lanyard, keeping it out of the way while filming.

Keep the voice in focus

A single button switches between noise reduction, original sound, reverb and mute. The included furry windshields help reduce wind noise outdoors.

Natural sound from every direction

Omnidirectional microphones capture the voice naturally even while the subject moves. The system records at 32 kHz / 24-bit and covers a 20 Hz to 20 kHz frequency range.

Control directly on the transmitter

Change the audio mode with a short press, without opening an app. A colored indicator shows connection and mode status.

Up to 30 hours with the case

Each transmitter runs for about 6 hours. The 400 mAh charging case recharges both transmitters twice, extending total use to approximately 30 hours.

Range up to 100 metres

The 2.4 GHz digital link reaches up to 100 m in open space and around 20 m through obstacles, leaving room for interviews, presentations and moving shots.

Lightning and instant playback

The receiver plugs directly into the Lightning port of a compatible iPhone or iPad. The system pairs automatically and recorded audio can be played back on the phone immediately.

• 1× Lightning receiver
• 1× charging case
• 2× transmitter (black and white)
• 2× furry windshield
• 2× lanyard
• 2× clip
• 2× magnet
• 1× charging cable
• 1× user guide

• System: two-channel wireless microphone, 2 transmitters + Lightning receiver
• Transmission: 2.4 GHz GFSK, 2 Mbps
• Range: up to 100 m line-of-sight; approximately 20 m through obstacles
• Latency: less than 40 ms in noise-reduction mode
• Polar pattern: omnidirectional
• Frequency response: 20 Hz–20 kHz
• Sampling: 32 kHz / 24-bit
• Sensitivity: −38 ± 2 dB
• Maximum SPL: 101 dB SPL
• Signal-to-noise ratio: greater than 58 dB
• Transmitter: 28 × 26 × 13 mm; approximately 8 g
• Transmitter battery: 3.7 V / 75 mAh Li-polymer
• Transmitter runtime: approximately 6 h
• Transmitter charging: approximately 2 h
• Receiver: 40 × 25 × 11 mm; approximately 5 g; Lightning connector
• Charging case: 93 × 38 × 32 mm; approximately 49 g; 3.7 V / 400 mAh
• Operating temperature: −10 to 45 °C
• Charging temperature: 0 to 45 °C