Bluetooth 2.0 for better call quality with less interference and faster connections.
Embedded microphone.
Up to approximately 4 hours of talk time.
Up to approximately 150 hours of standby time.
Memory Capacity: 1GB/2GB/4GB/8GB build-in flash support
USB port: USB high-speed 2.0 transference,backward compatible with USB 1.1
Earphones Type: Mylar speakers with fore-aft booming and rotational positioning
Audio Support: MP3, WMA, WMA with DRM, WAV