YOWU headphones are known for their innovative design that blends "anime" culture with advanced audio technologies, and are particularly famous for their RGB-lit "cat ear" headphones. Specifications of YOWU 4 Headphones (Fourth Edition) This is the latest version and offers improvements in sound and microphone quality: Audio Unit: Large 50mm dynamic driver. Battery: 1000 mAh capacity, providing up to 48 hours of playback (when lights are off) and 2 to 10 hours (when lights are on). Charging: Supports fast charging via Type-C port, with a full charge taking about 1 hour. Connectivity: Supports wireless connection (Bluetooth 5.0) with aptX technology for low latency, as well as a wired connection option. Microphone: Detachable high-definition microphone with noise cancellation. It is new, unused, with its accessories and bag.