Features:1. Using the new Bluetooth 5.0 chip, lower power consumption and more stable master-slave switching technology to realize the use of on-the-go and no disconnection2. Combining the arc-shaped moving coil acoustic structure to make the vocal mellow, and the high frequency is pleasing to the ear, so that the magnificent in the song can be stretched in the brain.3. Ergonomically designed, it greatly reduces the burden of wearing headphones for a long time. With skin-friendly silicone ear caps, it can go with you steadily even with strenuous exercise.4. Exercise without fear of sweat, and support outdoor sports on rainy days without hindering the enthusiasm of the gym5. Regardless of the main and auxiliary earphones, the left and right ears can be switched freely.Parameters:Transmission range: 10MFunctions: power display, call function, NFC function, voice control, music support, multipoint connectionBluetooth protocol: 5.0Channel: stereoUsage: earplugSingle or double ears: bilateral stereoInternal inclusion1PC pair of headphones1PC charging chamber1PC charging line