The unique sound guide structure design adopts the side and back double hole sound guide scheme, which expands the low frequency performance from the physical level, so that the semi-in-ear sound conduction is no longer superficial, but also full of low frequency depth and volume.Intelligent noise reduction, using the new intelligent noise reduction technology, you can also devote yourself to music in a noisy environment in time,which is natural to the ear.The master-slave change is just comfortable, and the single and binaural use can be seamlessly switched. Pick up one at will to listen, and the stable transmission is not easy to disconnect.Excellent Hi-Fi stereo sound gives you an auditory feast. With built-in microphone you can take calls.Feel operation, beautiful at your fingertips, built-in smart Feel module, no matter answering the phone or switching songs, just Feel the headset to complete.In smart digital screen you can check battery consumption display anytime. Charging case presents its battery from 1%-100%. There are separated left and right headphone power consumption indicator.The battery compartment is fully charged for about 20 hours, and the battery life is charged once a week, and the music is always around.Tumbler shape, nice and pleasure, the source of design inspiration and toy tumbler, with fashionable color matching, it is a beautiful scene in the eye.Advanced Bluetooth 5.3 technology guarantees faster and more stable connection and transmission.