supply of supply of portable speaker.supply of portable speaker.,portable speaker with built in mp3 player with bluetooth, usb, wireless mic, having plastic m odule cabinet with trolley system. minimum specification: 2 mic input. 2 wireless mic. 1 aux input & 1 musi c input, built in 305 mm (12 ) 4 watt speaker & 8w hf drive, active bass & treble control, led indication f or low battery, charging & clip out put, three power source operation (ac mains, external 12v dc or built i n 12v/7ah rechargeable battery). make & model: ahuja bta 880 or similar [ warranty period: 30 months after the date of delivery ] ] => limited