产品说明： 1．电源供电dc3.7-12v 2．外接储存器接口usb、sd/mmc/tf 3．支持按键操作功能（播放/暂停、上一曲/音量-、下一曲/音量+、rep、音效转换、usbsdfm之间自由切换) 4．支持遥控远程控制 5．支持u盘、sd卡、mp3、mp4硬盘中的文件管理;带记忆功能; 6．支持mp3/全部9种采样频率（8khz - 48khz）;支持高码率（32kbps - 384kbps,包含vbr）； 7．支持外音输入放大功能 8.支持fm收音机功能 9．音频频率响应20hz - 20khz 高保真立体声输出接口 以上为个别样品参数，如有需要欢迎来电详谈 product description: a. power supply dc3.7-12v two. external storage interface usb, sd / mmc / tf 3. support key operating functions (play / pause, previous track / volume - a / volume + rep, audio conversion, usb, sd the fm between the freedom to switch) 4. support remote control remote control 5 support u disk, sd card, mp3, the mp4 hard disk file management; with memory function; 6. support for mp3 / all nine kinds of sampling frequency (8khz - 48khz); support high bit rate (32kbps - 384kbps, including vbr); 7. support for external audio input amplifier 8 support fm radio function 9. audio frequency response 20hz - 20khz high-fidelity stereo sound output interface the above parameters for individual samples, if necessary, to welcome the calls go into the details