Fun factor
User rating
Pros: 100% silicone and hypoallergenic. Rechargeable battery. Multiple vibration settings. It gave me a "full" feeling when inserted
Cons: A bit expensive. But, it's a quality built device, which is worth the extra money.

fun factory duke

I’ve had the Fun Factory Duke, dual action prostate massager sitting in my nightstand for about 2 months now.  Believe it or not, I put it there and forgot about it!  Oh well, as you know, life gets busy sometimes.  Work, kids, being a single dad…yadda yadda yadda.

Anyway, here we go.

Duke is an interesting prostate toy.  The shape is radically different from anything else I’ve tried.  This unique shape really put the pressure on all the right spots, every time I use it.

I love how easy it is to operate.  Simply hold the button for 4 seconds and it’s ready to rock!  See the video below for a demonstration.

The Duke is made in Bremen, Germany.  I don’t know about you, but German engineering rocks.  From prostate toys to automobiles, the Germans have their shit together.  The construction of this toy is no different.  It’s solid, well constructed and the controls are in the right places.  I haven’t had this for a long time, so I can’t attest to its longevity.  But it feels and operates like a solid bedroom toy that will last a LONG time.

Let’s start with a product video!

The review continues after the vid.


It’s rechargeable!

That’s right.  We review a lot of rechargeable devices here at Best Prostate Massager Guide.  As I’ve said before, I used to be hesitant to buy items with built in rechargeable batteries.  Years ago, the old fashioned Ni-Cad batteries pretty much sucked.  They didn’t hold a charge for long, and after many recharge cycles, they just plain didn’t hold a charge anymore.

However, modern rechargeable batteries are SIGNIFICANTLY better.  This one is great!  The included magnetic “Click n Charge” charger is simple to use and makes a great connection to the device.  Recharging doesn’t get any simpler than this.  Magnetic attachment is the best.

If you didn’t watch the video, you can see how easy the connection is, at 1:14.

If you’re on a budget, the Rocks Off Rude Boy or Big Boy may interest you.  Click to check out these reviews.


Well, almost.  Fun factory says 100% waterproof, but I’m hesitant to submerge the removable “bullet vibrator”.  However, since they’re the manufacturer, they probably know best.  Just make sure you dry it off before hooking up to the charger.  In a nutshell, the Duke is made for play in ALL conditions.


  • The insertable end is 1.2 inches (3 cm) thick at its widest point
  • Maximum insertable length:  2.75 inches (7 cm)
  • Total length:  6.25 inches (15.9 cm)

100% medical grade silicone

Duke is molded of pure, 100% medical grade silicone.  This makes it safe to use for nearly everyone.  It’s hypoallergenic so there’s no risk of bad reactions to skin or other internal areas.


Duke comes with a 2 YEAR WARRANTY.  This is awesome, as most vibrating massagers come with only a year, at most.

The vibrator

The vibrating bullet is removable and made of ABS plastic.  It’s pretty simple, actually.  There is a single button that controls all the vibrating functions.  It’s very easy to connect to the charger.

 Vibration patterns

It has 6 vibration patterns.  It took me a little bit to figure out the 6th one.  If I took the time to read directions, I wouldn’t have wasted 5 minutes trying to figure it out myself 🙂

The video shows how to operate it at 0:59.

Available colors

You can choose the standard black (shown in the pictures) or a sexy blue.  Mine is the blue color.

Another device that will make you feel like King of the Bedroom is the Jopen Ego E4.  It’s shape is quite different from Duke.  But still a very effective prostate massager that rubs the perineum and buzzes your prostate, simultaneously.


Cleaning and care

The Duke is pretty easy to maintain.  First of all, you should only use water-based lubricants.  NEVER use a silicone lube with silicone toys.  See our page on anal lubes right here.

Cleaning the dildo part is simple.  Pull out the vibrator and wash the silicone in warm, soapy water.  Then dry it off with a lint-free towel (or let it air dry) and you’re ready to rock.  To clean the vibrator, I feel it’s best to use a baby wipe or wet towel.  Some anti-bacterial toy spray is always a good option.


Final thoughts

Well, I have to admit that I really enjoyed Duke.  My prostate really DID feel like royalty!

In my opinion, the vibrator on this thing is excellent.  I personally like a vibrator with more buzz, but this one is no slouch.  It’s hard to explain, but the vibes just “feel better” than massagers like the Lelo Billy or the Aneros Vice.  Not that the others are bad, just that this ones vibes just the way I like it.

Oh, and speaking of the vibrator, this baby is dual action.  It buzzes the perineum AND the prostate, simultaneously.

The vibes seem to travel all the way through the device.  I experienced decent vibrations all the way at the tip.  Not as intense as the epicenter, but still very nice.

The controls are fairly easy to operate.  The single button keeps things simple.  It’s just a matter of holding it on for about 4 seconds to fire it up.  After that, it’s just button taps to get to the setting(s) you prefer.

As far as the dildo portion of Duke…it gave me a nice, full feeling.  Something alot of the thinner toys just don’t provide.  For example, the Lelo Billy is thinner, if this is your thing.

That’s about all I have for this review.  Feel free to drop me a line.  Let me know what you think!



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