A. Features: This audio extractor is equipped with a high-definition Audio Return Channel (ARC), optical/coaxial inputs, as well as coaxial, optical left and right channels, and RCA 3.5mm outputs, which makes it suitable for TVs. The 3.5mm stereo headphone port is equipped with an audio amplifier. It supports the transmission of an audio sampling rate of 192 kHz. The optical and coaxial interfaces support 5.1-channel transmission (signal pass-through). It is suitable for places like home theaters, teaching, training, conference rooms, and home appliance stores. B. Specification Parameters: - Type: Audio Return Channel (ARC) audio adapter - Material: Aluminum alloy - Color: Black - Power interface: Micro USB - Maximum operating current: 100 mA - Case size: 90×73×21 (mm) - Weight: 92 g C. Packaging Specifications: - Size: 17×11×2.7 cm / 6.7×4.3×1.1 inches - Weight: 170 g / 6.0 ounces D. Packaging List: - 1 Audio Return Channel (ARC) audio adapter - 1 USB data cable - 1 user manual