The Takstar BM-621USB digital boundary microphone user manual provides setup, operation, specifications, and troubleshooting guidance.
This manual describes the Takstar BM-621USB digital boundary microphone, a USB‑connected cardioid microphone designed for network conferences, voice chat, live streaming and portable recording. It explains how to connect the microphone to Windows, macOS and iOS devices, configure driver settings, and use the mute and low‑cut switches.
The document also lists technical specifications such as sample rate, frequency response, sensitivity and power requirements, and provides safety cautions, troubleshooting steps, and recommended software for video‑conference and voice‑chat applications. This manual is written in Chinese.
| Sample Rate | 44.1/48 kHz |
|---|---|
| Bit Rate | 16 bit |
| Polar Pattern | Cardioid |
| Frequency Response | 50 Hz – 16 kHz |
| Sensitivity | -5 dBFS ± 2 dBFS |
| Distortion | ≤1.5 % at 1 kHz |
| Signal‑to‑Noise Ratio | ≥65 dB |
| Low‑Cut Filter | 150 Hz, 6 dB/Oct |
| Dimensions | 72.5 × 101 × 23 mm |
| Net Weight | 210 g |
| Power Supply | USB 5 V / 500 mA |
| Capsule | Φ12 mm condenser |
Open the Windows sound settings and set the system recording device "TAKSTAR BM-621USB Microphone" as the default.
Connect the microphone’s Mini‑USB to a Lightning‑to‑USB adapter, then plug the adapter into the iPhone or iPad.