... speaker 2 FM USB TF speaker 3 Subwoofer 3W*1 4 USD 5.90 only 5 gift speaker good looking metal body speaker ... output RMS 3W x 13,frequency range 100HZ--18KHZ 4,speaker unit Φ40mmx2/4Ω 5,S/N ≥75db 6 ... D64x H50mm 7,input DC 5V 8,Li-ion battery 3.7V 1000 mAh/rechargeable 9,support TFcard, U ... Flash Disk,FM.Suitable for devices equipped with a 3.5mm audio jack, including cell ...