... Line in function N8 Elongated bluetooth speaker box, rechargeable bluetooth speaker Music angel speaker, Classic style speaker , Build- in Battery, Line-in ... Sensitivity:300mv5.S/N:75dB6.Frequency response:180Hz-18KHZ7.Speaker:φ33mm*1,4Ω,2W8.radiator:32*52mm*19. ... .Support MP3 music format12.HIFI speaker units,clear acoustic quality,low distortion13.Subbass speaker units,acoustic quality more purity14 ...