SHENZHEN, China , April 11, 2016 /PRNewswire/ -- EC Technology ("EC Tech"), a supplier of electronic products with high quality features and competitive prices, is announcing the debut of its enhanced bass & Bluetooth 4.0 speaker, a big upgrade from its original Bluetooth 4.0 speaker model. EC Technology 's new Bluetooth 4.0 speaker is hot and has won a lot of positive reviews among customers from our UK , US and DE store s , due to its elegant appearance, new position of the button and the excellent sound quality.