... *100mm Appearance materialABS plasticWeight333.3gFunctionbuilt in speaker, for study and gifts,with lasting antennaFrequencyFM88-108MHzAM 525 ... output31mvBatteryNot includedS/N50dBImpedance 8ΩProduct useSuitable for promotion gifts, business, home, school, outdoor, emergency ect.Packing:Inner ... As an excellent global supplier of electronic business for gifts, XIBOMAN Company offers good service from ...