Powerful  vibration speaker 4ohm 30W for massager

 SL-VS12 4ohm 2W D20mm*H7mm vibration speaker

 SL-E20 8ohm 40W flat panel exciter

 40mm 4ohm 10-15W vibration conducting trasnducer vibration speaker driver

 SL-VS06 30mm vibration speaker 8ohm 8W

 SL-E12 8ohm 40W bass surface sound transducer

 30mm Mini Vibration Exciter Speaker 4ohm 10W SL-VS10

 4ohm 10W 44mm vibration conducting transducer

 34mm 8ohm 5W audio exciter

 4ohm 20W surface sound transducer

SL-VS13 massager Vibration module 30W

4ohm 10-25W transducer vibration speaker driver 50mm