QueStyle M15i Headphone Amplifier Portable DAC USB DAC Amp with Dual-Jack, Portable Headphone Amp - Apple MFi Certified, Hi-Res DAC - Low Noise, for iOS/Android/PC

1. Apple MFi Certified: Guaranteed performance and compatibility for Apple devices. 2. Dual Current Mode Amplification: TOREX power management for high performance, low power consumption. 3. Exceptional Audio Quality: -130dB bottom noise, 0.0003% total harmonic distortion, wide frequency range. 4. Versatile Connectivity: 3.5mm, 4.4mm dual jacks, manual gain adjustment, supports up to 600 ohm impedance. 5. Advanced DAC Technology: ESS ES9281AC chip, PCM768, DSD512 decoding, true lossless audio. 6. Note: When connecting to Lightning interface devices, you can purchase an additional Questyle LTC02 Lightning to Type-C adapter that has been officially certified by MFi. Low impedance and high sensitivity headphones Generally refers to headphones under 50 ohms, this headphone is recommended to connect to the 3.5 jack.