• PXI, PAU1603 • Master-slave control Version5.0,IPX5 • Touch operation systemEarbuds • Charging base 400mAh • Earbuds each 50mAh • Non-stop playing time:4-5 Hours • Speaker Φ6mm 32Ω • Sensitivity(SPK)95±3dB@1KHz • USB: type-c data cable • Earbuds size: 36.0*17.5*22.5mm • Charing box size: 82.0*40.0*38.0m