These TWS Earphones have low latency, HiFi stereo sound quality.The upgraded Bluetooth 5.0 chip is compatible with various Bluetooth products, which not only delivers higher quality music, but also reduces power consumption & stabilizes the connection. Equipped with intelligent dual processing chip, after the mobile phone transmits the signal, the left & right earphones can receive simultaneously, reducing delay &stable signal transmission.After the cellphone's firstBluetooth connection is successful, it will pair automatically the next time it is connected, the simpledesign is comfortable to use. Supports high definition binaural calls with noiser eduction. Microphone with call noise reduction technology reduces most environmental noise & makescalls clearer.