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KMASHI [amazon.com]has their Portable Wireless Bluetooth Speakers with Bass Powerful Sound Support TF Card on sale for $ 20 shipped for free with Amazon Prime. It features:

-Cool and compact "X" design; Built-in 44 RGB LED lights, 4 music pulsating LED visual display mode best for party, home,office or anywhere; Latest Bluetooth 4.0 Technology – connect your device in 3 seconds, connection range up to 33 feet for convenient wireless freedom.
-Powerful Functions: Volume up/down, track skip, pause, play, power on/off. Play music by 4 ways – TF card, U disk, AUX(3.5mm audio port), or pairing digital devices via Bluetooth function.