Immersive audio quality: 40 mm drivers with bio diaphragms deliver rich, full sound with HiFi stereo for an experience close to a live performance. Long lasting battery and flexible connectivity: 8 hours of continuous playback or talk time from a built in 350 mAh rechargeable metal lithium battery. Supports wired or wireless connection; when the battery is exhausted, you can continue listening with the included audio cable. All day comfort and portable design: acoustically engineered memory foam earcups provide soft, pressure comfort for extended wear. Foldable design with an adjustable slider headband and rotatable ear cups fits most head shapes and folds compactly for easy transport in a handbag or backpack. Built in microphone and easy controls: integrated microphone for clear hands calls. One click to answer or hang up calls. The multi function button controls power on/off, tuning, play/pause, and track switching with one hand. Supports plug in TF cards (TF Card not included). Practical use scenarios: ideal for daily commuting or travel, long listening sessions at home or in the office, and hands calls during remote work or online meetings. Compatible with wired or Bluetooth wireless devices, with convenient fallback via the included audio cable when needed.