The MP230 boasts a duplex design 2600 mAh high-capacity lithium-polymer battery, able to sustain Bluetooth playback for up to 10 hours per charge. Inspired by vintage radios from the 1950s and 1960s, a perfect replica of piano key buttons is complemented by a legendary palette and boutique mesh. The stereo acoustic system is composed of two 48 mm full-frequency driver units, coupled with an integrated large-size dual passive radiator; compact yet powerful.The Bluetooth 5.0 delivers faster transmission, lower battery consumption, more effective resistance to interference, simple connection and free playback.Aside from Bluetooth input, other supported input sources include AUX, sound card and TF card.The MDF wooden enclosure is thinner than plastic and warmer to the touch than metal, allowing sound to flow tenderly into a beautiful world.The exquisitely designed piano key buttons feel smooth at your fingertips with moderate and crisp feedback are the soul of the overall concept.The thickened foot pads with spherical contact surfaces offer great insulation from vibration and effectively prevent heavy movements.MP230-Portable Bluetooth Speaker BT Version V5.0 Audio inputs Bluetooth, AUX, micro SD (TF) card, USB audio streaming Full-range driver 48mm*2 Working time 10 hours Battery capacity Dual 2500mA/7.2V Power output 10W+10W Frequency Response 70Hz-13kHz Product Size 162*84.5*96.5mm Product Weight 850g