Topping NX4 Portable Audio DAC Amplifier 

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Topping NX4 Portable Audio Amplifier Headphone Earphone Silver,HIFI Digital Stereo Audio AMP for Iphone,Ultra Slim with USB DAC Port,Gain Mega Bass Set,100% Compatible with IOS

– SUPPORT APPLE/ANDROID DECODING: with the standard data cable, can be connected to Apple(100% compatible), Android mobile phone decoding, which is the best choice for playing HIFI with phones.
– USB SOUND CARD FOR PC: connected to the computer can be used as a high-performance USB sound card, the maximum support 192kHz / 32bit.
– 36 HOURS SUPER LONG BATTERY LIFE: fully charged in the pure amp mode can work 36H, USB decoding + amp mode can work for 12H.
– BOOST & GAIN SELECTION: with bass boost and gain selection function,more powerful and clear music output.
– ALL METAL SHELL: beautiful appearance; small size, easy to carry.all-metal shell,very hard,unbreakable

TOPPING NX4 is a high-performance HIFI portable USB decoding headphone amplifier. Built-in a high capacity rechargeable lithium battery for its easy to carry out and long life; Analog and Digital signal input choice. Output of 307mW * 2 , enough power to drive whatever headphones. (Lighting Port, Type-C Port, Micro Port…) No matter what kinds of playing devices (IOS/Android/PC/MP3) can find the right accessories to connect NX4, easy for you to listen to beautiful music. Moreover, NX4 can be connected to the computer through a USB cable as a high-performance external sound card, the maximum specifications to support 192kHz / 32bit.

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