... and Folding MP3 Bluetooth Headphone Multimedia computer headphone Hi-Fi sound Play high quality MP3 from TF cards ... well with Skype, MSN, and VoIP Wired & Wireless headphone USB cable used for charging battery when connected ... when connected with PC Line in function as the Hi-fi headphone , And chat online & listen music ... Cable,USB Charging Cable, Adapter,Microphone(Optional) Wireless Bluetooth Handset