Creative Sound Blaster E5 HiRes corresponding 24bit / 192kHz USB DAC portable headphone amplifier Bluetooth with SB-E-5 [Japan import] High-quality USB DAC & Portable Headphone Amplifier During PC connection is carried out directly to the output bypasses the audio processor DAC "direct mode" is also equipped with High-quality audio playback is possible aptX, NFC support Bluetooth equipped of AAC support A USB host port equipped, also supports USB digital connection to the iPhone or Android smartphone, etc. Two headphone output corresponds to the maximum of 600 impedance, high impedance headphones also can be driven