Improved sound quality with every call thanks to ENC and powerful batteries, always charged quickly and wirelessly. With or without cable: The headphone charging box can be charged via wireless charging technology - simply place the charging case on a suitable Qi charger and charge wirelessly. Easily check battery level: On the LED display you can read the charging status for both earphones and the case separately - you know immediately when to recharge. Extremely fast charging: thanks to Fast Charge, the Bluetooth earbuds are charged at high speed - just 10 minutes of fast charging is enough for a playtime of 2.5 hours. Box contents: 1 x Spirit Unchained Bluetooth headphones, 1 x charging box, 1 x USB-C charging cable, length 15 cm, 1 x user manual, 1 x safety instructions.