Features: 4 Channel Synchronized Clear Transfer: Allows simultaneous transfer of 4 3Pin sound data streams with noise reduction circuitry for multi track setups. Long Distance Stable Link Using Ethernet Cable: Uses standard RJ45 ports and shielded wiring for clear, cost effective sound extension. . Plug and Play With Various Connectors: Needs denial setup or configuration; consistent 3Pin (male/female) and 6.35Mm plugs. Robust Design For Clean Output: Featured aluminum casing for durability and heat dissipation, additionally shielding to block electrical/electromagnetic disruptions. Versatile Compact Solution: Small lightweight design (135x52x39mm) for easy transport. Suitable for periods, celebrations, recording studios, broadcasts, and outdoor applications requiring stable sound extension. Specifications: Component: metal Dimensions: 135x52x39mm/5.31x2.05x1.54in Version: Female A B / Male A B Package: A, B,C,D Package Includes: 1PC 4 Channel 3Pin Auditory Extender note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!