Support APT-X lossless transmission.</br>HIFI Bluetooth wireless two-way transmission.</br>Built-in high and low gain selection,to meet the needs of different headphones sensitivity and listening.</br>Japan Seiko protection circuits,10-12 hours of battery life.</br></br>Product Description</br></br>Parameters:<br> Size: 75mm * 42mm * 14mm<br> Weight: about 50g<br> Screen: 2.0-inch TFT high-definition display (320 * 240)<br> DSD decoding: Support 64,128<br> USB DAC/OTG DAC: WINDOW support and MAC systems, and some OTC function Android phones<br> Bluetooth:4.0 APTX support lossless transmission<br> CPU:X1000<br> D/A converter chip:AK4452VN<br> Amp chip:MAX97220A<br> Gain Selection:low gain, high gain<br> Output Impedance:0.1OHMS<br> Sampling rate:44.1kHz-192kHz/24bit<br> Audio formats:FLAC,APE,WMA,WAV,ALAC,AAC,OGG,MP3,AIFF,DSF,DIFF<br> Output:3.5mm headphone jack<br> Output Power:35mW@32ohm<br> Frequency response:20hz-20000hz (-0.5db)<br> Distortion:0.005%<br> SNR:>109db<br> Dynamic range:>105db<br> Channel Separation:106db<br> Extended Storage:Support 256G<br> Power:Macro USB2.0<br> Battery:1000mAH lithium polymer battery<br> Life time:about 10-12 hours<br> Support System:MAC OSX10.7,Windows XP,Windows 7/8/10 or update the system<br></br><br/>http://www.amazon.com/gp/product/B01M0D5LBP