This speaker produces thee most amazing music & I am completely saddened I have to sell it, but I need the money to move. Used periodically over a couple years, but it is still in brand new condition.! It was baby, so you know it was taken care of. You will not be disappointed.! It's awesome.!!! The Harman Kardon Onyx Studio 5's advanced and distinctive design is expressed through its signature round silhouette, premium fabric cover of the speaker enclosure and an integrated aluminum handle for easy portability. Destined to be the best sounding, full featured portable Bluetooth speaker in its class, the Onyx Studio 5 offers long hours of playtime as well as wireless dual sound, which wirelessly connect two Harman Kardon Onyx Studio 5 speakers to elevate music listening experience. Commanding attention at every angle, the Onyx Studio 5 is an iconic design piece in any home. Speaker Type: Portable Freq Resp 50-20000Hz Driver Size 120 mm (woofer), 25 mm (tweeter) Signal-to-Noise Ratio 80 dB Number of Drivers 2 Wireless Yes Bluetooth Yes Assistant Support Yes Ports Aux In Wi-Fi No Remote Control No Nominal Output Power 50 W (RMS, AC mode) Power Source Both (AC and Battery) Battery Capacity 3283 mAh Battery Life 8 hours Batteries Required Dimensions 11.2 x 11.5 x 5 inches (28.4 × 29.1 x 12.8 cm) 6.6 lbs (2.98 kg) Material Aluminum, fabric Grille Fixed Style: Modern Highlights Portable, Wireless Dual Sound, Speakerphone, Stereo Special Purpose Portable