BOYA BY-V4U Wireless Lavalier Four-channel Microphone for 3.5mm Convertor

✅ Key Specifications Wireless transmission: 2.4 GHz digital frequency band.  Maximum transmission (line‑of‑sight, no obstacles): up to 200 m (≈656 ft) for the transmitter → receiver link. Receiver–output type: For the “U” version (BY‑V4U), the receiver supports USB‑C (and with adapter, iOS Lightning) digital output to mobile devices; there is also a version with 3.5 mm TRS output.  Number of channels / simultaneous mics: Supports 4 transmitters (4 mics) going to a single receiver.  Sampling rate / bit depth: 48 kHz / 16‑bit.  Frequency response: 20 Hz – 20 kHz.  Signal‑to‑Noise Ratio (SNR): > 80 dB (some specs show 85 dB) for transmitters.  Maximum Sound Pressure Level (SPL): 120 dB.  Transmitter battery life: approx. 6 hours on a full charge.  Charging case (for transmitters): Battery capacity ~1500 mAh; case size ~143.6 × 80.5 × 35.5 mm; weight ~160 g.  Latency: ~20‑30 ms (i.e., delay from mic → output) in typical conditions. Distortion: ≤ 0.1% in one listing.  Sensitivity: ≈ –42 dB in one spec sheet.  Weight / size of each transmitter: ~10.5 g; size ~62.6 × 18.3 × 10.2 mm.  Charging time (transmitter): approx. 2 hours.  igadgetbd.com Download There have been no reviews for this product yet.