Four amplifiers provide a total output of 40 watts. The boombox plays music from various sources, such as the lockable Lightning dock for Apple iPhone or iPod touch, wirelessly via Bluetooth from smartphones and tablets, as well as from devices or sticks connected to the USB port. The matte black JVC RV-NB75 Boomblaster impresses not only with its design but especially with loud, clear sound and powerful bass. Music from all possible sources is covered: whether from the built-in CD player and FM radio or from a newer Apple iPhone/iPod touch. For this purpose, the JVC RV-NB75 Boomblaster features a lockable Lightning dock. Older iPod and iPhone models can be connected via USB. Android smartphones and tablets can send music wirelessly to the boombox via Bluetooth. Additionally, MP3 and WMA files can be played directly from USB sticks or hard drives through the USB port. For those who prefer analog, the JVC RV-NB75 Boomblaster also provides an audio input.