Size: Long 8cm * wide 4cm * high 9cm

supports the form of many kinds of audio

 frequency: For instance: MP3 WMA WMV

supports win98/ME/2000/XP/Vista system, USB moves the magnetic disc, avoids driving on Win98 one, uses simultaneously. USB2. 0 puts 3 while transmitting at a high speed. 6V lithium battery, capacity is 400 milliamperes, put and broadcast time for more than 3 hours outside, insert the earphone to broadcast for more than 15 hours. SNR: 85dB