Solidcom SE - Solidcom SE-4S (Global Version-2.4GHz)

ENC Noise Reduction Solidcom SE features an ENC dual - mic noise reduction design. It can dynamically recognize environmental noise with a noise reduction depth of up to 20dB. Clear Call Quality It offers clear calls, with a frequency response range of 150Hz - 7KHz and a signal - to - noise ratio > 71dB. Waterproof and Design With an IPX4 - level waterproof design, the overall headphone adopts precise industrial design. Automatic Frequency Tuning Equipped with an automatic frequency - tuning algorithm, it can automatically adjust the frequency when encountering interference