Portable USB / SD / Bluetooth® audio system Support for WMA / MP3 playback from USB / SD devices Wireless music transfer via Bluetooth® Bluetooth® A2DP support, which can be used to pair this device with other devices with the same profile (phone, tablet, computer, etc.) ) USB input, built-in SD / MMC card reader Recording to USB / SD devices AM / FM / SW1 / SW2 radio with digital frequency display Connector for connecting stereo headphones and built-in microphone AUX In connector for connecting an external device Current time indication Remote control Power from mains, batteries or from the built-in rechargeable battery Output power: 2 x 2.2 W (RMS) Power supply: 230V ~ 50Hz, 6V (4x 1.5V AA)