... within 10 meters 4.CE,ROHS,FCC 2013 wireless bluetooth outdoor speakers for iphone Specification: 1.Model Number: ... to Point11.Frequency Response: 20HZ-20KHZ12.Sensitivity: 80db13.Indication: red and blue14.Pairing Products: According with HFP, HSP, AD2P, ACVRP Bluetooth ... protocol computer, USB Bluetooth Adapter, Cell Phone, IPAD, MID, etc Photo: ...