What's in the box:

D-205 Active Speaker Computer Speaker Stereo Input Speaker USB-powered Speaker 3.5mm Audio Speaker Black (Black)

Features:
High Quality Sound
Surround stereo, effectively restore the original sound quality.
Three - inch Woofer
The rear three - inch woofer brings you different music enjoyment.
Wide Compatibility
Support mobile phones, computers, tablets and other 3.5mm multimediaaudio equipment.
Volume Adjustment
Humanized front design, easy to operate, can be adjusted according to the occasion.
IndependentTreble and Bass
Independent adjustment, can adjust at will according to the difference of song style.

Specification:
Model: D-205
Color: Black
Output: 3W
Separation: 40dB
SNR: 80dB
Frequency: 25Hz~20KHz
Power: USB/DC5V600mA
USB cable length: 1m
Audio line length: 1m
Audio interface: 3.5mm
Adjustment form: knob
Channel: 2.1
Material: Plastic
Item size:12.7*11.2*9.5cm / 5*4.41*3.74in(L * W * H)
9.2*7.7*6cm / 3.62*3.03*2.36in(L * W * H)
Item weight: Approx.643g /22.68oz
Package size:25.5*16.7*12.3cm / 10.04*6.57*4.84in(L * W * H)
Package weight:787.5g /27.78oz

Packing list:
1 *Main Speaker
2*Small Speakers
1 *User Manual