The Mastomatic is an automatic blowjob machine similar to the Autoblow. Just like the Autoblow, the Mastomatic is a handsfree masturbation toy that simulates the experience of a blowjob.  Also like the Autoblow, the Mastomatic gives you the ability to change the speed of the blowjob.  I personally love my cock being sucked long and slow -the Mastomatic delivers me that experience at the flick of a switch. 

Should you purchase the Mastomatic or the Autoblow?  I would suggest you buy both.  The sucking motion, as well as the tactile experience and feel of the blowjob, is different for both blowjob machines. 

The Mastomatic blowjob machine is available to buy at under $120.

The Masatonic blowjob machine