Over Dvibe is about mid-cost for a rabbit vibrator, at around $70, and a very typical example of a Japanese rabbit vibrator. It is slightly unusual in that it's a "extra-deep" model, for women with longer vaginas. In fact, I think the D in Dvibe refers to Deep. If you look carefully at rabbit type vibrators, you will notice that no matter where they are from, the shaft portion of the vibrator in it's total "usable" length from where the rabbit or other animal clit vibrator attachment attaches comes in different lengths.
When you are shopping for this style of vibrator it's important to have some idea of your (or your lover's) vagina length so you can try to pick one that is an ideal size for you. You will need to more or less be able to take the whole shaft in, in order for the "rabbit" to reach your clit. Yes, the vagina stretches a lot, but you should be able to comfortably enjoy your toys with your body the way it is. Additionally, the length and style of the "rabbit" (or beaver or otter or dolphin, etc) should be a length and style that will suit you. The rabbit in particular is good if you want those ears to fall on the sides of your clitoris. If you actually want to make sure you get a "direct hit", you may want to buy one with a dolphin or whatever other design has one center piece that will center on your clit. If you are not sure what would work out best for you, you may want to err towards a shorter shaft and a longer looking clit attachment. Also, I don't really recommend the "triple prong" type, that has a second skinny shaft for your ass, because it's unlikely that you will be able to comfortably and adequately stimulate all three areas at the same time (but I'm sure some of you out there will disagree with me).
For myself, since I have a long vagina (around 7 inches deep), and I also have a clitoris which is unusually far away from the entrance of my vagina, I do prefer longer vibrators, but more importantly in this case I need a longer "rabbit", or it won't reach my clit, which defeats the purpose of buying a rabbit vibe. A shorter shaft is not a big deal, since you can make your vagina shorter with positioning, or you may not even want to be banging against your cervix anyway.
Total toy length is 9.25", usable length of shaft is about 5.25", length of rabbit is about 3.5". There is a clear, soft, squishy TPE coating over what looks like a black plastic egg on the rabbit and coin-like thin disks stacked making up most of the shaft. A lot of these type of toy have metal or plastic "pearls" on the shaft, so this is a small twist on the theme. These discs move when you turn the toy on. Both the art on the toy's box and Toy's Heart's promo video seem to suggest with their arrows that the shaft moves up and down, but that's not the case, it's feels just like the normal pearls that move around, stimulating your vaginal walls. Just like the pearl type, if you are clenching down really hard on the moving discs, the movement can slow down or temporarily lock up. I've never been sure if this is a unintentional flaw or a planned flaw to protect the motor.
the arrow is a lie
Like the majority of rabbit-style vibrators, the controls are these up-and-down arrows that control separate motors for the shaft and clit attachment. Both parts have 8 speeds/settings and since they are separate, you could have, say 0 on the shaft and 8 on the rabbit, or 7 on the shaft and 3 on the rabbit, however you like it. You can slowly turn up the speeds as you play, if you want. Small LEDs light up on the control box as you go up speeds, helpful if you need to check what speed you are on in the dark.
This toy is made from TPE - thermoplastic rubber polymer. It doesn't have phthlates, and it's usually not very porous, but if you are sharing this toy or plan on using it anally, you should use a toy condom. It can be cleaned with soap and water, or with a toy wipe in a pinch. You can use either water-based or silicone lube with it.
Over Dvibe requires 4 AA batteries. The one thing I really didn't like about this toy is how difficult it is to get the battery case back on after you have inserted the batteries. It takes pressure to force it, basically, and not only is it difficult and time consuming, I am also concerned that I will eventually break the battery door into pieces, it is pretty thin. It goes on by sliding on in a small channel. Although the battery life isn't terrible, probably you will have to change out the batteries every 1-3 uses, so it's pretty often to deal with this hassle. Especially on a fairly expensive toy. I wouldn't mind if the base on these type of toys was a little bigger and the battery door being a simple 'pinch out, click in' type, like I have on my battery operated computer mouse, the gentle kind you don't have to worry about breaking a nail on. I also felt that the battery door wasn't 100% splash-proof and since it opens within a millimeter or two of the base of the toy, it makes it a little challenging to clean under the sink tap.
As for the performance, this Over Dvibe vibrator has really got some kick to it for a battery toy. At top speed, the rabbit vibrates hard enough to please anyone. I need a strong vibrator to get off, and strongly prefers 5 out of 5 strength toys and this was totally satisfying. I would say it's a strong 4. If you are more sensitive, you won't have to turn it up to top speed.
The shaft doesn't rotate at brutal speed or anything, it's meant to be relatively gentle and just sort of work in tandem with the sensations on your clit, not get you off by itself. When you come, it will intensify and prolong your orgasm when it moves against your clenching muscles. You may be able to come faster by clenching on it purposefully. A lot of the "pearl" type cover a smaller portion of the shaft than this toy does, it will hit spots almost everywhere on your vaginal walls. If not this toy, I would try to pick one out with as much coverage as possible, so you will be more likely to hit a good spot.
The packaging is very plain, and mostly small print all over the box. There's a clear window big enough to show almost all of the toy. No women on the box at all. I cannot read kanji, so I don't know what most of it says, but there are some English words on there and helpful pictures of the toy. As I said, there is a misleading picture and the word "piston" on the box that makes you think you are buying a thrusting toy, but it's not. There are rabbit vibrators out there with thrusting, that mimic the pumping action of real intercourse, and even a very few with both thrusting and a small "pearl" area.
On the toy itself, in English are the words on, off, fast, slow, and standard arrows, so no problems understanding how the controls work.
Final Verdict - 4/5, performs solidly for a rabbit vibrator, but has room for improvement.
You may be able to still find this item if you're in Tokyo, or elsewhere in Japan. I was not able to find any online vendors for this toy. Sometimes edenfantasys.com and kanojotoys.com sell Toy's Heart toys, but they don't currently stock this one. I generally like Japanese manufactured rabbit toys and think they are a smart purchase for better than average toy longevity and quality materials.
Speaking of buying sex toys in Japan, I wanted to share a little bit of my experience, as a non-asian American tourist. I found it a little shocking and a lot exasperating that apparently it's normal in Japan for all areas of the store to be accessible for male customers, but that female customers are not allowed into some areas, like male masturbation aids. I guess in Japan, women are not supposed to know about or buy such items for their husbands or boyfriends, but that it's perfectly fine for men to buy a vibrator for their woman. I did not get a chance to ask though, so if anyone has any educated perspectives on this phenomenon - what's the dealio? Is this to protect women, or men's privacy?
The stores are set up so that there is a category of items on each small floor with its own cashier. The cashiers are there partially to make sure no minors get into the store, and presumably to police the men-only floors. There a plenty of signs, including in English, telling you that under 18s are not allowed, what is on each floor and which floors are for men only, so you can't really pretend that you didn't know.
Here is one of the Akibahara adult stores - Love Merci
Rather than test the situation by walking to the next floor and seeing what happened, though I thought about it, since I generally try to be a inoffensive tourist, me and my female companion asked a cashier very nicely if we could please be allowed to shop in the men's area because it would be a once in a lifetime thing for us. We were there in Japan with our men back home and really hoped to be able to surprise them with some naughty gifts. The cashier was hesitant and flustered, but after making some calls, they said we could go up. The Japanese are generally very into customer service and the cashier probably didn't want to present a bad image to us. I didn't want to upset any customers up there, so I tried to shop and leave quickly and not get too close to any of them or stare. Which, frankly, was pretty generous of me, since while I was looking at toys for women, men were not hesitating to brush up against me or stare at me.
There is M's store on the right, and Nex up ahead to the left. They are all a short distance from the Akihabara station and easy to find. Just regular folk picking up love pillows, dildos, and naughty nurse costumes.
Apart from some awkwardness, visiting the adult stores was quite fun. The stores were large and you had a lot to select from, and mostly premium quality items. Prices were not too different from the U.S. (apart from the nasty exchange rate anyway). Japan is a great place to pick up thinner condoms and unique lubes (a lot of them seem more watery yet have better staying power and feeling) and sex-oriented bath products. Although they are starting to catch on here in the U.S., "pussy in a cup" (example here) is very popular in Japan and you can see dozens and dozens of different ones here, including all the different Tenga items.
disclaimer - I purchased this item myself. Opinions are my own and have no affiliation with Toy's Heart.