Headphone Adapter & Splitter, Headphone Jack Audio & Charge Connector Splitter Calling/Charger/Music/Remote Control for iP7/7 plus/8/8 plus/X Light and small design for easy portability Aluminum material provides excellent heat dissipation Supports transfer rates up to 480 Mbps with USB 2.0 LED indicates Power / HDD status Compliant with USB 2.0 Backward Compatible With USB 1.1