The TWS technology (True Wireless Stereo) offers an absolutely comfortable and wireless solution. The One-Color earbuds are the ideal companion for your music and calls. Connect wirelessly to devices equipped with Wireless Connection. The True Wireless Stereo technology ensures a stable and automatic connection to the paired device from a distance of up to 10 meters. After the initial connection with your smartphone, tablet, or laptop, they will automatically reconnect every time. Easy charging wherever you are, thanks to the charging case. You can listen to music and make calls for 3 hours straight, and when the earbuds run out of battery, simply place them back in the charging case. They will be back to 100% in just one and a half hours. The charging station can power the One Color up to 4 times. If the charging case also runs out of power, connect it to a power source using the USB-A to USB-C cable. Touch control for maximum comfort.