... design 3. fast delivery Big Windmill Bluetooth Portable Speaker Basic specification of the products:1.Bluetooth Ver2.1+EDR (Option);2.Support A2DP , ... AVRCP ,GAVDP,OPP;3. RF Power:Class2;4.Support Bluetooth file receive ... 9.Support Class D AMP (3WX1);10.Support TF card;11.CE,FCC,ROHS,BQB certification passed. Big Windmill Bluetooth Portable ...