Thailand

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 playback 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 *1
3.5 to 3.5 Audio Cable *1
Rubber band *2
Velcro *5
Rubber Pad *1
User Manual  *1
Warranty card *1