Descriptions:Dual-coreOutput power:3WSensitivity: 500mV +-50mVImpedance: 4(&amp;Omega;)Noise ratio: greater than or equal 70dbDistortion: less than or equal to 0.3%<br>Features:*Built-in FM stereo FM radio module， multi-band radio， automatic channel search， FM radio display*Using DTS super (low stress) technology; feelings DTS (low stress) super shock. Using HI-FI IC amplifier， audio output core technology， more superior tone.*Built-in rechargeable lithium battery. Replaceable battery， not because of battery aging and abandoned speakers.Environmental conservation， practical.*Supports MP3 playback; super-reader functions: directly read TF card and U-disk MP3 format files， and enjoy the authentic sounds of nature.*External audio input.Do MP3 \/ MP5 \/ cell phone \/ computer and other audio equipment.*The machine configuration standard headphone jack， optional headphones to listen to music.*Intelligent memory system: automatic memory last exit track to play.<br>Package Included:1 x PN-99 Mini Card Radio Thin Card Small Speakers1 x Usb Cable1 x BL-5C lithium battery<br>More Details: