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The world's first independent headphone corrector combines a studio-grade converter, headphone amplifier, and calibration. The device accurately corrects the frequency response of headphones and simulates a speaker-like listening experience without additional accessories.

• The world's first independent headphone repair service
• High-precision calibration for over 250 headphone models
• Studio simulation and crossfeed algorithm
• ES9290 DAC and 200 mW headphone amplifier
• 5 presets, USB-C and 3.5 mm inputs, 4-hour battery