The DN-300CMKII is a high-performance 1U-sized CD player, with the added flexibility of convenient front-panel ports for playing back material from a USB thumb drive, and a 3.5mm stereo input for playing material from external sources. Another added feature is Tempo control - perfect for fitness and educational applications. Simple to operate, you’ll find the purity of its audio performance is truly remarkable at its modest price point - giving you a rugged, no-compromise playback solution that occupies a mere 1U of space. It has several features dedicated for professional use such as Front Panel Lock function, Power On Play function and Resume of settings even after power recycle. Ideal target applications are retail shops, fitness studios, hotel/conference and education.