Just take this little elves EARISE AL-203 High-fidelity USB Acoustics System, gives you rich and strong 3D Stereo sound, without taking up too much space. Wide range volume control allows you to enjoy the music no matter indoor or outdoor.
-Perfect sound with 3D Stereo Effect
-Power supplied by USB, no adapter or amplifier required.
-Plug and use, no driver needed
-Full frequency speakers
-Easy and simple connection to PDA, notebook, walkman or other music source with USB jack and 3.5mm jack.
Output: 5W(2.5W*2) RMS THD=10%
Fre. Response: 90Hz-20KHz
S/N Ration: ≥60dB
Distortion: ≤ 1W 1KHz
Speaker Unit: L/R channel 2’’*2
1 * EARISE AL-203 High-fidelity Speakers Set
1 * English User Manual