Questyle M15i Portable DAC/Amp (Open Box) usb-a female Conveys the perfect harmony of

Conveys the perfect harmony of the sound and imaging

bringing an unprecedented excellent tuning

These stellar headphones deliver formidable power

waveform-inspired design

High-purity nickel push-button spring

Questyle M15i Portable DAC/Amp (Open Box) usb-a female Conveys the perfect harmony ofApple MFI Certification Ensures High Performance and Compatibility "i" in M15i indicates that it has been certified by Apple's MFi program. MFi certification ensures perfect compatibility with the iPhone iPad and the Apple ecosystem. It meets Apple's strict requirements for external devices in terms of power consumption and compatibility, avoiding the risk of damage to phones and systems caused by arbitrary connections of USB devices. Equipped with