The Ulanzi A21 (A053) is a two-channel wireless microphone system designed for recording two people using a smartphone, tablet, or computer equipped with a USB-C port. Two miniature transmitters, a receiver, and a charging case make up this compact kit for interviews, vlogs, podcasts, and live streams.
The Ulanzi A21 (A053) is a two-channel wireless microphone system designed for recording two people using a smartphone, tablet, or computer equipped with a USB-C port. Two miniature transmitters, a receiver, and a charging case make up this compact kit for interviews, vlogs, podcasts, and live streams.
A wireless microphone system for two people with a USB-C receiver. Two small transmitters recharge in the case and record clean sound to a phone, tablet or computer.

The receiver connects automatically and needs no app. Clip the transmitters on, attach them with a magnet or hang them on a lanyard.
Two speakers on one receiver.
A transmitter weighs just 8 g.
32 kHz / 24-bit sound quality.
Latency under 40 ms.
Each transmitter weighs about 8 g and attaches with a clip, a magnet or a lanyard. The omnidirectional capsules capture a natural voice at 32 kHz / 24-bit quality, and intelligent noise reduction keeps speech clear even in a busier environment.
The receiver handles two separate transmitters, so the A21 suits interviews, joint presentations and two-person podcasts. The connection is automatic and needs no app. Modes include original sound, AI noise reduction, a reverb effect and mute.

The 2.4 GHz digital link works in open space at up to 100 m with latency under 40 ms. The USB-C receiver suits modern Android phones and tablets, iPhones with USB-C and other supported devices. The pass-through USB-C port lets you power the connected phone while recording.

A transmitter runs for up to 6 hours. The included 400 mAh case recharges the pair twice from empty and stores them safely in transit. Furry windshields reduce wind noise when you record outdoors.
The Ulanzi A21 (A053) is a two-channel wireless microphone system for recording two people with a smartphone, tablet or computer that has a USB-C port. Two miniature transmitters, a receiver and a charging case make up a compact kit for interviews, vlogs, podcasts and live streams.
| Manufacturer: | Ulanzi |
| Category: | Microphones |
| Microphone type | wireless lavalier (2.4 GHz) |
| Stereo | No |
| Type | Condenser |
| Receiver connector | USB-C |
| Microphone connection | Wireless |
| Number of transmitters | 2ks |
| Polar pattern | Omnidirectional |
| Range | 100m |
| Microphone power | internal battery |
| Frequency range | 20x20000Hz |
| Transmitter battery life | 6h |
| Charging case capacity | 400mAh |
| Maximum SPL | 101dB SPL |
| Bit depth | 24bit |
| Sample rate | 32kHz |
| Colour | Black |
| Weight | 8g |
| VLOG microphone | Yes |
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