You’re not satisfied with the built-in speaker of your Android tablet? Check out the USB portable speaker with suction cup, maybe the 2.0 speaker system can meet your requirements.
This is a pair of portable speakers, each speaker measures approx 44 x 44 x 34mm. As we can see from the images, the portable speaker system features lightweight and compact design, and it also features 200Hz – 17KHz frequency response, 4ohm impedance and 2 x 2.7W power amplifier in order to deliver you loud stereo audio. And each speaker comes with a suction cup, so you can conveniently attach the two speakers to any neat surface such as your Android tablet, laptop and more, but note that, the portable speakers are powered by USB port.
The portable USB speaker with suction cup is price at $15 USD. If you’re interested, jump to Brando for more details.