Product size: 102mm x 95mm Support Power: 150W Support Heating Power: 150W frequency: offer 40KHz type: Driver Circuit Board color:Green+silver Material:PCB+electronic components+metal Package Contents: 1 x Driver Circuit Board 3 x Ultrasonic Transducer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.