* Bluetooth / NFC capabilities
<br />
<br />* U disk and TF card plug and play, play MP3 format music, with memory function
<br />
<br />* FM radio with FM function, can automatically search and memory channels;
<br />
<br />* BL5C external high-capacity rechargeable battery, charging more often, easy to replace;
<br />
<br />* 3.5 audio output / input, but also for computer, MP3/MP4 / mobile;
<br />
<br />* You can select a song fast forward and rewind
<br />
<br />* With bass diaphragm; 
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<br />Specifications: 
<br />Bluetooth Resolution: CSR 4.0 
<br />Connection: 3.5mm / bluetooth 
<br />Output Power: 3Wx2 
<br />Charging Output: 5V
<br />S/N Ratio: >85dB
<br />Impedance:4 k 
<br />Frequency Response:50Hz~18kHz 
<br />Battery Li-ion:3.7V 
<br />Battery Capacity:Removeable Battery 600mAh 
<br />Dimensions:320mm*65mm*65mm 
<br />Weight: 0.44Kg
<br />
<br />Reminder: 
<br />NFC function only for android. 
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<br />Package contents: 
<br />1x Speaker
<br />1x 3.5mm audio cable 
<br />1x Micro USB charging cable