XO X13 is a 5.1 TWS earbuds bluetooth earphone with a charging box. The headphones support TWS (True Wireless Stereo) technology - both headphones connect to each other to form a wireless stereo set. A portable box with a built-in battery, in addition to the charging function, allows you to safely store the headphones in your pocket, bag or backpack. Free your hands and listen to music, internet radio while working, walking, training or driving. The XO X13 TWS headphones are the perfect solution for users of smartphones, computers, notebooks, tablets and other devices that support Bluetooth technology. They are compatible with most Android and iOS devices. The headphones also have a microphone, so you can easily make voice calls. The duration of the calls / listening to music on a full charge is about 240 minutes (depending on the volume level), thanks to the use of energy-saving Bluetooth 5.1 technology.