It's USB-rechargeable and has 20 sucking modes AND 20 vibrating modes that are controlled separately, so you can play around to find your perfect combination.
Promising review: "My wife and I have had a very passionate and active sex life for the past 10 years. I thought adding a vibrator might enhance what is already pretty good with some extra spice. There are some things I do not feel comfortable about purchasing online, as I like to know that there's someone that will stand behind their product should something go wrong. I researched many of these devices on Amazon, looked at hundreds of reviews, and found the Girl's Best Friend, which looked quite interesting. I reached out to the customer service department to ask a few questions before making the decision to purchase. Their customer service feels like the same experience that I used to get at Nordstrom. Convinced, I went ahead and ordered it. Now, my wife is a little slow to get started and I think of myself as a very good lover; however, this thing had her doing loops in 30 seconds, and then another 5 seconds after that, and then another...and then I pried it out of her hands because I feared for her life! LOL. Definitely a good product with an outstanding customer service team." —dlh60
Get it from Amazon for $49.99 (available in two colors).