About FIFINE K037B Wireless System
| Feature | Specification / Description |
|---|---|
| Frequency Band | UHF 565–584 MHz (20 selectable channels) |
| Microphone Type | Condenser, uni-directional cardioid for both lapel & headset |
| Frequency Response | 50 Hz–16 kHz (Tx mic), Rx references 40 Hz–15 kHz |
| Signal Range | Approx. 45–60 ft (14–18 m) in open areas |
| Transmitter Output Power | ~10 dBm / 10 mW |
| Batteries – Transmitter | 2× AA, lasts ~5–6 hours |
| Batteries – Receiver | 2× AAA |
| Connector Type | 1/4″ TS with 1/8″ TRS & TRRS adapters for camera/smartphone |
| Polar Pattern | Cardioid — reduces ambient noise |
| S/N Ratio (Rx) | ≥ 58 dB for the mic; Rx sensitivity ~–95 dB |
| Pairing/Channels | One-touch pairing per channel; supports 3–5 sets simultaneously with channel management |
| Weight | Shipping weight ~0.8 kg |
| Included Accessories | Lavalier & headset mic, body-pack Tx, Rx, adapters, cable clips, windscreens |
| Typical Applications | Teaching, public speaking, preaching, video content, fitness instructors |
