FANTECH WH07a Space edition Go Flow combine exceptional comfort, long battery life and superb sound, making them the ideal choice for everyday use, whether at home, at work or on the go. Two connection modes – wirelessly and via cable FANTECH WH07a Space edition Go Flow allow flexible connection via Bluetooth 5.3 for a stable and uninterrupted wireless connection or via a 3.5 mm audio cable when you want a direct connection to the device. Light and comfortable for all-day sleeping Designed for long-term use, these over-ear headphones have a soft lining and an ergonomic headband, ensuring comfort even during several hours of use. With a weight of only 231g, the WH07a Go Flow does not burden the head and ears. Long battery life – up to 35 hours of playback Enjoy up to 35 hours of continuous listening to music, movies or conversations on a single charge. When the battery runs out, simply charge it via the USB-C port and continue enjoying. Powerful sound with 40 mm drivers Equipped with 40mm speakers, the FANTECH WH07a Space edition Go Flow delivers powerful and clear sound with rich bass and crystal clear treble. Effective noise reduction With -23dB noise reduction, these headphones minimize background noise, allowing you to focus fully on your music or conversations. ANC ANC stands for Active Noise Cancellation. They produce the opposite frequency that neutralizes external sounds, thus providing you with a quieter and more pleasant environment for listening to music or making calls. ANC works best with over-ear headphones, as opposed to earbuds. Also, ANC technology is focused primarily on improving the listening experience, because it effectively eliminates background noise and allows you to fully enjoy the sound. Specifications: Type : Over-ear Bluetooth Version : BT 5.3 Driver size : 40mm Speaker sensitivity : 105 ± 3dB Speaker frequency response : 20-20KHz Battery life : Up to 35 hours Charging time : Approximately 3 hours Weight : 231g Connecting : Bluetooth 5.3, 3.5mm audio cable