Technical SpecificationRated Power: 2.3×2WFrequencyResponse 100Hz~20KHzDriver unit 8Ω 2W×4 S/N Ratio85dBInput Sensitivity 500mvFM receive frequency 88MHz~108MHzProduction size: Fold: 200×120×25 mmdeploy: 100×120×120mmWeight:330g(exclude battery)Power Source AC/DC Adapter: input: 100~250V±15%,output: DC 5V / 1A Battery: Four AAA alkali or two nickelhydrogenSystem:Sound box system 1PCSPower source adapter 1PCSAudio signal wire 1PCSPull-line downy cloth bag 1PCSUser manual1PCS