Philips BTM2180/37 Micro Music System Black Wireless music streaming via Bluetooth, Maximum output power (RMS) 70W (30% THD), 50W (10% THD) Play MP3-CD, CD, CD-R/RW and USB flash drive USB Direct for easy MP3 music playback, Power supply 120V, 60Hz Audio-in for portable music playback Bass Reflex Speaker System delivers a powerful, deeper bass