Model : L331BT version: JL5.4Power : 16WBattery : 2000mAhDriver unit: 2.05 inch*2 + Passive Radiator*2Size : 405*58*68mmProduct Weight : 715gFunctions : BT , USB Slot, TWS,TF Card, FM Radio, AUX-in, Abyss light ,Handsfree