XQ-20 - Xduoo Accessory XQ-20 Portable Headphone Amplifier Black Retail
Technical Specifications
Product parameters Power Source: DC 4.2V built-in li-polymer rechargeable battery Frequency response: 10Hz-22Khz Playback time: more than or equal to 9H THD+N: 0.001% (1KHz) Suitable Headphone Impedance: 16 ohm to 300 ohm Charge time: less than 4H Output Power: 125mW (32 ohm load) Gain: +3/+6dB S/N: 114dB