... portable wooden media player, with amplifier, speaker system, FM radio, song select, with built-in recharge li-ion battery Model ... Brown / BlackWith FM Radio Function Music Playback function from Audio Music Source from SD memory card or USB flashdriveNew portable ... Battery capacity :900mAhOutput : RMB 10W (5W + 5W) THD = 10%Frequency response : 150Hz - 20KHz versatile connection to CD, DVD, MP3, ...