Comparison : Item # SMS-1308MS-2-R, 0.7 Watt (W) Rated Input Power Surface Mount Device (SMD) Speaker
Item # SMS-1508MS-2-R, 0.5 Watt (W) Rated Input Power Surface Mount Device (SMD) Speaker
Item # SMS-1508MS-HT-R, 0.8 Watt (W) Rated Input Power and 92 Decibel (dB) Sensitivity Surface Mount Device (SMD) Speaker
Item # SMS-2008MS-R, 0.8 Watt (W) Rated Input Power and 90 Decibel (dB) Sensitivity Surface Mount Device (SMD) Speaker