Sell Topping NX1s Hi-Res Digital HiFi Portable Headphone Amplifier (SILVER) best price

Topping NX1s Hi-Res Digital HiFi Portable Headphone Amplifier Topping NX1s is a high performance headphone amplifier which has Gain set and Selectable Mega Bass, it has been designed for all kinds of music player to improve the player`s output power and sound quality to drive a headphone. Pros: 40 hours long play back time; Full aluminum case; Micro USB charge port; TOCOS potentiometer; Intelligent charging with battery indicator Spec: Measured: 8.4cm*5.5cm*1.0cm Weight:78g Power input: DC5V/1A(PC`s USB 0.5A) Charge time: <4 hours(@1A) Playback time:>40 hours THD+N:<0.0005% SNR:≥117dB Noise:<3uV(Low Gain), <7uV(High Gain) Gain: 0dB/8.7dB Bass:0dB/4.0dB Output Power: 150mW(32Ω); 25mW(300Ω) Frequency response: 20Hz-100kHz Recommended Headphone Impedance: 16-300 ohm Warning: Output voltage of the charger could not exceed 5V Package: NX1s Silver *1 3.5 to 3.5 Audio Cable *1 Rubber band *2 Velcro *5 Rubber Pad *1 User Manual *1 Warranty card *1