Line-in function, connecting to computer, MP3, MP4, mobile phone output playing; Support audio format: MP3 / WAV (below 384kbps); LED Indicator: Support; Play/Pause/FWD/PREV function; Support Micro SD / TF card music files playing; Support AUX line-In; Output: 2 x 3W; Power Supply: 5V; Voltage: DC 5V; Built-in lithium battery; Weight: 115g; Dismension: 80mm(L) x 50mm(W) x 50mm(H).