... FCC 5. Fast delivery Ear Hook and Folding MP3 Bluetooth Headphone Multimedia computer headphone Hi-Fi sound Play high quality ... work Supports headset and hands-free profile Compatible with all Bluetooth cellphones Works well with Skype, MSN, and VoIP Wired ... connecting, clear sound, and anti-interference Frequency: 2.4GHz Bluetooth range: 10m SNR ≥ 90 db Support Windows98/win2000/winXP/winVista/ ...