The BT-919 belongs to the family of solid stereo integrated amplifiers. The integrated amplifier combines a preamplifier and power amplifier in one device, so it can directly accept the signal from any source (cd/dvd player, turntable, radio, etc.) and transfer it to the speakers for playback. In this case, it operates with transistors or otherwise solid state. It features a built-in radio. It is also equipped with Bluetooth, which allows you to connect wirelessly via your mobile or computer and enjoy your favorite music in better quality and greater volume. Digital LCD display with backlight. Ports: Memory cards, U disk MP3 format play FM radio Remote control Power output: 18W X2 Weight: 740g Packaging dimensions: 24 x 21cm