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 and has a 350m transmission distance without visual - range obstruction. Easy to Use It is ready to use right after being powered on. It supports up to 8 - way collaborative communication. Mute Function There are two mute options: the MUTE button and muting by flipping up the microphone boom. The MUTE button supports the PTT mode. Battery Life The fully - charged headphone has a battery life of up to 9 hours and supports charging while using.
