Compact portable column speaker system with internal media player + Bluetooth® The PPC-082B has a battery on board for mobile use (battery included). 8” woofer with a surprisingly deep bass sound and separate bass level control. 2 Extra microphone inputs with individual level control + build-in sound effect control. Both microphone / guitar inputs can also be used as mono Line inputs. Stereo mini jack input to connect an external player. The media player accepts both USB-sticks and SD-HC memory cards up to 32GB. Plays MP3, WAV, WMA, APE and FLAC files. Modulable column speaker for 3 different heights. No more speaker stand needed ! Balanced line output to connect extra speakers. Bluetooth TWS function for wireless stereo when 2 speakers are used. Battery run time @ half power = +/- 10 hours (bass boost @ 50%) Battery run time @ full power = > 5 hours (bass boost @ 50%) (the battery run time can be influenced by the music style) Transport bag sets are optionally available.