Professional. Upgrade. One serious toy everyone needs. 140watt motor. Super quiet. 10%solid metal. Up to 450 times every two mins. Up to 7 inch thrust depth. Beautiful smooth thrusts. Controls rudimentary but built superior quality. Over 700 just last year. Only selling cuz wasn't bought for me. Rip. Obo. Takes it. Must go Plz text only. Or email.