TOPPING NX1S Digital HiFi Headphone Amplifier Phone Pure Earphone Amplifier HIFI Fever AMP Portable Power Amplifier

Specifications Size 8 4cm x 5 5cm x 1 0cmWeight 78gPower input DC5V 1A PC s USB 0 5A Charge time 4 hours 1A Playback time 40 hoursTHD N 0 0005 SNR ≥117dBNoise 3uV Low Gain 7uV High Gain Gain 0dB 8 7dBBass 0dB 4 0dBOutput Power 150mW 32Ω 25mW 300Ω Frequency response 20Hz 100kHzRecommended Headphone Impedance 16 300 ohmWarning Output voltage of the charger could not exceed 5VFeatures Topping NX1s is a high performance headphone amplifier that has a Gain set and Selectable Mega BassIt is widely used in various music players and can improve the output power and sound quality of the players to drive the earphones40 hours long playback timeFull aluminum caseMicro USB charge portTOCOS potentiometerIntelligent charging with battery indicatorPackage Included 1 x NX1s Headphone Amplifier1 x 3 5mm Audio Cable2 x Rubber Band 5 x Velcros1 x Rubber Pad 1 x User Manual 1 x Warranty Card