... 5*8cm 2. Cute design Portable USB Mini Pig Speakers 3. Suitable for computer, mp3, mp4... SpecificationsUSB Mini Pig Speakers1. Portable USB ... Also Very Convenient For Travelling4. Suitable for computer, mp3, mp4, mobile phones; 5. Voltage of 6 V, 6. External usb power, 7 ... matter the performance of the human d sound effects and stereo effect, compared with the same kind of mini-speakers, the effect is ...