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EINSEO

EINSEO Male Masturbators Automatic with 7 Vibrating Modes & 3 Suction Modes, Strong Motor, 3D Textured Sleeve, USB Rechargeable Male Masturbator Easy to Clean

Condition: New
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$29.99
Save $25.00 was $54.99

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At a glance

Condition
New
Color
Pure Black
Model
RIV001
Material
Acrylonitrile Butadiene Styrene (ABS)
Water Resistance Level
Waterproof

Features 5

  • 7 Vibration & 3 Suction Modes: Features 7 vibration settings and 3 suction levels that can be adjusted to match your preferred intensity, offering multiple combinations for a customized experience.
  • Strong Inner Motor Performance: Built with a powerful motor that delivers steady and consistent output, ensuring smooth operation and enhanced stimulation with every use.
  • 3D Textured Soft Inner Sleeve: The removable inner sleeve is designed with raised nodes and layered textures to increase contact and provide varied sensations while remaining soft and flexible.
  • Upgraded Structure for Easy Cleaning: The detachable design allows quick disassembly, making cleaning simple and convenient after each session.

Specs 8

Color Pure Black
Material Acrylonitrile Butadiene Styrene (ABS)
Brand EINSEO
Style Pure Black
Water Resistance Level Waterproof
Package Dimensions 10.83 x 4.33 x 4.33 inches; 1.87 Pounds
Batteries 1 Lithium Polymer batteries required. (included)
Manufacturer EINSEO

Frequently asked questions

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This item is non-returnable:

Non-returnable due to Product safety reasons

View our full returns policy here.

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Top Amazon Reviews

SHUT UP AND TAKE MY MOMEY!!!!!
Color: Black
This is my new favorite toy and I’ve used many before it. The bluetooth app is kinda lame but the device is awesome. The suction is strong and the vibrating motor is right where the male g-spot is. It would be a little better if there was more depth to the device as it doesn’t go all the way down my shaft, but if it wears out or breaks on me I’m going to buy another one, that’s how good it is. ... show more
Reviewed in the United States on April 20, 2026 by Amazon Customer
Works pretty well!
Color: Deep Flesh
Toy works so good that Amazon is blocking me from reviewing it! This toy has fantastic suction, has a very good app, strong vibrations, and is made of high quality material. It’s practically a steal for the price!
Reviewed in the United States on April 4, 2026 by Anthony
Great product
Color: Black
Worked like it should, great for the price
Reviewed in the United States on May 5, 2026 by Samuel Abrahams
Fun, Great Value, and Easy to Clean
Color: Black
This product is incredibly fun and offers a unique sensation for less than other products. The build quality is also phenomenal, being made of thick plastic and feeling robust without being too bulky. One great thing about this toy is that it's incredibly easy to clean, even easier than sleeves. There's no need to turn anything inside out (compromising the structural integrity of some toys, especially cheaper ones) and the sleeve is short relative to the length of the toy, making it easy to clean. ... show more
Reviewed in the United States on April 19, 2026 by Synaptic
Great Toy!
Color: Black
I wasn't too sure about this toy when I fist used it because you have to use the app for the full effect. Once I sorted through the app and took my time with it, this is now my favorite toy. A big bonus is that it can be used hands free. The suction is incredible and the vibrations are intense. Great toy! I love it! ... show more
Reviewed in the United States on May 2, 2026 by Eric Pikoriatis
Good price and good device
Color: Black
Good device for the price and enjoyed it. Easy to clean and easy to use as well.
Reviewed in the United States on April 14, 2026 by cory glandon
Solid Toy With Strong Suction — Worked Great for Me
Color: Deep Flesh
Seeing the mixed reviews, I wasn’t sure what to expect, but after using it myself I’m actually really impressed. The suction is definitely strong — maybe too strong for some people — but for me that was one of the main things I was looking for. It stays consistent, and once it gets going, it delivers a really satisfying experience. The material is soft and comfortable, and the internal feel is better than I expected for the price. It’s easy enough to clean once you get used to how it comes apart, and the size/fit worked perfectly for me (people’s experiences definitely vary based on size, so that’s worth keeping in mind). There’s no movement beyond suction, but I knew that going in, and I still found it enjoyable. It’s a simple device, but it does its main job well. Noise level is about average — not silent, not super loud. Overall, despite some of the mixed reviews, I’m really happy with mine. If you’re looking for strong suction and a good texture without needing a bunch of extra features, this one is absolutely worth a try. ... show more
Reviewed in the United States on November 18, 2025 by Mackenzie
Loads of potential, but when you get a unit that has a bad battery, it leaves you feeling blue.
Color: Black
I really love almost every aspect of this toy. The Vibration feature is great, the suction is great. The overall external size is good. I found it most stimulating to put the vibrator in so, the way I hold this, the vibrator meets up with the underside of my member at the tip. Although it fits very snugly inside, the material is very stretchy. I don't mind it not be long enough, since most sensitivity is at the end of my member. One complaint is that there are hard + shaped plastic tabs at the end that are making impression into the material and may end up causing damage to the ABS insert. This toy would be nearly perfect if it wasn't for the defective battery. I get almost one use out of it and then the suction and vibration get weak very quickly. I'm left to getting myself part of the way before I can switch to using this which is semi frustrating. If there was a way to replace the battery, I would definitely upgrade it to a quality battery with high MAH. It shows I can still return it, so I may update this if I get one with good batteries (who will be the lucky on to open that return box?). I hope others get a good battery. Okay, so they did accept the return (05/08/2023). Before returning, I decided to perform a test. I charged both units up, gave the batteries a few hours to cool down. I turned both of them on at the same time. High vibration and regular suction. No load on either of them. I just laid them down and let them run side by side. My first purchase ran for 40 minutes, the brand new one ran for 46 minutes. I'm guessing the manufacturers test is no load and low vibration, no suction only in order to get the 1.5hr run time. Second, I tested the new unit using my original sleeve which is still like new condition after 8 uses. The new unit (while under load) performed very poorly and made a lot of noise. I think the product consistency is very poor. The company needs a way to test their products under load because they act MUCH differently than when empty. I can see why the reviews are hit/miss. I will also say that it is very important to follow manufacturer instructions for cleaning and re-powdering the outside of the unit before re-using. The powder makes the insert perform correctly without getting snagged or sucked in on the inside of the sleeve. Also, you MUST carefully turn the sleeve inside out when cleaning. It may appear clean, but even after rinsing many times, after you reverse it and wash the inside, it will still initially feel slick rather than clean. The insert is delicate, but holds up if yours was manufactured correctly and you handle it with a lot of care. I still recommend this product, especially if you get a good performing product. It may even be worth opening up the unit and replacing your battery once it fails if you are capable and your unit functions as expected. Another Update: I'm continuing to experiment with this and I'm using it a little differently. I find that just using this without the battery is still quite nice. I think finding the proper amount of lubrication is important. I have been using vegetable glycerin which has been my "go to" lube for several years. I add a little clear colloidal silver to each small bottle I make as an ultra-safe germicidal. Even small factors like if you have any "pre cm" will affect the lubrication. I have found two new aspects that I like. First, I found that I don't get the "death grip" that I do when using just my hand. I have a very high sx drive and can go many times every day. This really helps because I don't lose the sensitivity that I do when using just my hand. Second, I noticed that the muscles/tendons in my hand are a lot less tight and inflamed after using this for a couple weeks. So, if you are highly active, this is definitely better than using your hand. ... show more
Reviewed in the United States on May 4, 2023 by SmokeyBear
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