BNK BK-802 Wireless Microphone
Description
The BNK BK‑802 is a dual‑channel wireless microphone system, suited for public speaking, live performance, church, karaoke, etc. It offers two handheld microphones, a receiver that supports either 2 or 4 channels, and delivers reliable audio over wireless distances. It is typically a VHF system with balanced or unbalanced outputs. It’s pitched at users who want decent quality sound without a very high cost.
Key Features
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Dual‑channel (2 microphones) support (some models also list 4‑channel capability).
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VHF frequency operation (approx 220‑270 MHz).
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Audio frequency response is about 50 Hz to 15 kHz.
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Operating range is generally about 40‑50 meters, in some places listed up to ~100 m under ideal conditions.
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Receiver and handheld units have metal bodies/displays in many versions.
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Power for the receiver: DC 12V.
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Microphones are powered by AA batteries. Battery life is around 8 hours.
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Features like PLL synthesized frequencies, companding to reduce noise/interference, and multi‑channel “anti‑interrupting wave” technologies.
Technical Specifications Table
| Specification | Value / Range |
|---|---|
| Brand | BNK |
| Model | BK‑802 |
| System Type | Dual‑channel wireless microphone system |
| Channels Supported | 2 (some variants list 4 channels) |
| Frequency Band / Range | VHF ~ 220‑270 MHz |
| Audio Frequency Response | ~ 50 Hz – 15 kHz |
| Operating / Working Range | ~ 40‑50 meters; up to ~100 meters in ideal conditions |
| Signal‑to‑Noise Ratio (S/N) | (One listing) > ‑80 dB; others not explicit |
| Total Harmonic Distortion (THD) | Not always specified; implied moderate for speech use |
| Receiver Output | Balanced output (some listings say “balanced/unbalanced”) |
| Transmitter / Mic Power | 2 × AA batteries (each mic) |
| Receiver Power Supply | DC 12V |
| RF Sensitivity | > ‑80 dB (some sources) |
| Build Material | Receiver and handheld mic: metal, some plastic components in some versions |
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