Quick overview from the supplier:
Microfon Patona Wireless System p/u Smartphones si DSLR Wireless lapel microphone (lavalier). Two-way stereo recording, 2.4GHz. Low latency, 48K sampling rate
SNR: ≥ 75dB
Sensitivity: 90dB
Sampling rate: stereo 48K 16bits high-quality sampling
Audio frequency: 35Hz-20KHz
Internal recording mode supports memory cards up to 32GB
Dual monitoring capability
Charging case 4055655237567 9877