Bang & Olufsen Signature Sound - True360 sound. Up to 8 hours of playtime on a single charge. 5W Qi Charging with compatible devices on the top tray. Easy pairing with other Beolit speakers for stereo sound. Anodized aluminum polymer base and leather strap design. 3 x 1.5" Full range speaker. 1 x 5.5" Long-stroke wideband woofer. 2 x 4" Passive bass radiators. Customize preferences with Beosonic Tuning in Bang & Olufsen app. Built-in rechargeable 3200mAh battery. 3.5mm Mini-jack. USB-C port for charging. Includes Plug adapter and USB-C cable.