The Mi True Wireless Earbuds Basic is a new experience of true wireless. You can have a single use of 4 hours and 12 hours with charging case. The storage case is also charging case, to protect the headphones, and charge the headset. DSP intelligent environment noise reduction technology removes ambient noise, so the other party can clearly hear your voice. The earbuds are extremely lightweight, only 4.1g light with three earplug sizes. The earbuds have Bluetooth 5.0 for a faster and more stable connection they have a data transfer rate of up to 2 times compared with previous generation. The Mi True Wireless Earbuds Basic have a multi-function button so you can answer/hang-up/refuse calls, play/pause music, or turn on voice assistant.