Rockhart. Housing made of shock-resistant ABS plastic. Illuminated LCD display. Metal speaker grille. Rain and dust-resistant multimedia compartment (USB, SD, AUX-IN). Rubber control buttons. 3-meter neoprene rubber power cable. Cable storage compartment on the back of the radio. Flexible, foldable antenna (Type KDAB1). LED indicator for Bluetooth connection. All-around rubber shock protection. Two metal side handles. Flat top design for easy stacking of toolboxes. The Boss. The largest and most powerful construction site radio ever. Two powerful woofers and tweeters powered by a premium amplifier produce impressive sound. FM radio will continue to be available temporarily. If DAB+ has coverage issues in large buildings or sparsely populated areas, FM is still available. So no worries: every radio can receive FM. Today's DAB+ radio technology. Crystal-clear digital radio (DAB+) with plenty of user comfort. At locations where digital radio cannot be received, simply switch to FM. With Bluetooth, you can effortlessly turn your radio into the best Bluetooth speaker and play your own music via Bluetooth. Everything on your computer or phone can be played through the radio. Power bank: The radios have powerful batteries that can also serve as a power bank with a 5V / 1.2A output. Just connect your phone to the USB port, and it will start charging. AUX IN: Had enough of the radio? With a simple audio cable, you can connect any device with a headphone jack and play it through your PerfectPro radio. Also useful when users want to take turns playing their playlists without having to reconnect to Bluetooth.