Acefast T9 Bluetooth 5.3 in-ear wireless headphones - blueAcefast T9 Bluetooth 5. 3 wireless headphones with display, in ear, IPX4 certified blue Acefast T9 wireless headphones provide the highest quality of music and phone calls. They operate for 6. 5 hours when fully charged. They have an LED display that informs about the charge level. Bluetooth 5. 3 technology ensures a fast and stable connection to the device. They are light and extremely comfortable. The most important advantages of Acefast T9