Supports up to 4 transmitters/microphones simultaneously – ideal for multi‑person recordings .
Dual noise‑cancellation system: “one‑click” noise cancelling and a windshield foam, enabling clearer audio in noisy environments.
Uses 2.4 GHz digital wireless transmission with a range of up to ≈ 200 m (open space, no obstacles).
Broadcast quality audio: Sampling rate 48 kHz / 16‑bit, SNR > 80 dB, handles up to 120 dB SPL (so loud sound won’t easily clip).
Built‑in omnidirectional microphone capsules in each transmitter, plus 360° rotatable clip design for flexible mounting.
Charging case included: each transmitter has about 6 hours of runtime, and with the case you get extended usage (up to ~12‑18 hours depending on version).
Universal device compatibility: Versions exist for USB‑C devices, 3.5 mm output, and iOS (excl. some exclusions) — so good for phones, tablets, computers.
Plug‑and‑play operation with automatic pairing for ease of use.
Compact, lightweight transmitters (approx. 10.5 g each) and small footprint charging case (nice for mobile use) in many regions.
✅ 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.