Key Features . 4 hour battery life with 8 hours stored in the caseIntuitive one button controlSwappable ear tipsAuto connect . Pick up and connect Put in and useIncredibly simple to use the Mi True Wireless Earbuds Basic 2 are ready to use as soon as you take them out of the charging case. Just put them in your ears and your audio experience awaits you. Free and seamless switching between single-ear and double-earThe Mi True Wireless Earbuds Basic 2 optimize the way the left and right earphones are connected. With no restriction on primary and secondary devices you can switch between single-ear and double-ear seamlessly. Put in one earphone for mono sound and then put in the other to automatically resume stereo sound with no need to pair again. Bluetooth 5.0 High performance with faster more stable connectionsThe Mi True Wireless Earbuds Basic 2 are equipped with the latest Bluetooth 5.0 chip which has a data transmission speed two times faster than the previous generation as well as faster and more stable connections. That\'s what the newest generation should look like. Physical button to avoid misoperationSimply control music and calls with one button activate the voice assistant by pressing either earphone twice* and access navigation at any time. 12-hour-long battery lifeCan be used continuously for approximately 4 hours after a full charge and for approximately 12 hours together with the charging case..