Questyle SIGMA Pro Portable Bluetooth DAC with Headphone Amplifier

Patented Current Mode Amplifier with a fully discrete, fully balanced design delivers professional-grade performance from a portable form factor. Balances powerful drive with low power consumption, featuring a peak output power >5V and load distortion as low as 0.0002%. Equipped with dual ESS9069 DAC chips and TTA three-tier decoding architecture, breaking the limits of portable devices by offering top-tier decoding performance up to PCM768kHz and DSD512. Mobile devices can now achieve desktop-level resolution. Apple MFi certified, ensuring perfect compatibility with iPhone/iPad and seamless integration within the Apple ecosystem. Dual certified by Qualcomm Snapdragon Sound and Sony LDAC, enabling wireless enjoyment of lossless audio. 3.5mm, 4.4mm, & 6.35mm headphone output jacks, combined with manual gain control, allow easy switching to your personalized listening mode. Built-in 4300mAh high-capacity battery provides up to 12 hours of single-charge battery life. The dual USB-C port design supports charging while listening, eliminating battery anxiety.