Ulanzi A21 Button Wireless Microphone

Model

Ulanzi A21 Button Wireless Microphone

Wireless Type

2.4GHz Digital Wireless

Transmission Range

Up to 30 meters (line of sight)

Polar Pattern

Omnidirectional

Frequency Response

20Hz – 20kHz

Signal-to-Noise Ratio

>70dB

Latency

<25ms

Battery Type (Transmitter)

Built-in Rechargeable Lithium-ion

Battery Life (Transmitter)

Approx. 6-8 hours

Charging Port

USB-C

Receiver Connector

USB-C (Other connectors via adapters if included)

Compatibility

Smartphones (iOS/Android), DSLRs, Mirrorless Cameras, PCs

Material

ABS Plastic

Dimensions (Transmitter)

Ultra-compact, button-sized (e.g., 20mm x 20mm x 10mm)

Weight (Transmitter)

Approx. 8-10g