HTY Series TV Speaker Impedance:16ohm Power:3W RMS/5W MAX all size, as your requirements 1.HTY Series TV Speaker2.Brand: Redsun3.Diameter:77mm 4.Impedance:16ohm 5.Power:3W RMS/5W MAX 6.Frequency range:280Hz-20000Hz 7.Sensitivity:85dbProfessional manufacturer of TV speaker.With CE,ROHS,ISO certificates,below: 77mm,3" 16ohm TV Speaker/Mini Speaker