Why choose a battery-powered vibrator over a rechargeable one? A battery vibrator is ready whenever you are. There is no cable to find and no waiting for a charge, and fresh batteries bring it straight back to full strength. It also tends to cost less and is light to travel with, since spare AAA batteries are sold everywhere. The trade-off is that you buy batteries over time and the motor is usually gentler than a large rechargeable one, which many people prefer for light, external stimulation.
iroha Zen Matcha: a simple, soft stick vibrator
iroha Zen is the stick-shaped vibrator in Tenga's iroha line for women, and Matcha is its soft green version. The slim body is easy to hold like a pen, and its surface is molded with pleated ridges that add texture as you turn or draw it across the skin. It is covered in the soft-touch silicone iroha is known for, with an anti-dust coating so lint does not cling.
One button switches it on and steps through three vibration strengths and one rhythm pattern. It takes two AAA batteries and runs for about four hours at full power. It is waterproof to 20 inches, so it can be used in the bath.
Best for: A good fit for beginners and for anyone who wants an uncomplicated, lightweight vibrator for external stimulation. It is held in the fingers and used with the tip for pinpoint contact or the ridged side for a broader touch. It also travels well, since it needs no charger.
At a glance: 3 strengths + 1 rhythm · Soft-touch silicone · Waterproof to 20 in · About 4 hours run time · 2 AAA batteries
Key features
| Stick shape |
Slim and easy to grip, so it can be angled exactly where you want it. |
| Pleated ridges |
Soft folds along the body add texture when you twist or stroke with it. |
| Soft-touch silicone |
The cushiony iroha finish feels smooth and gentle against the skin. |
| Three strengths and a rhythm |
A single button cycles through low, medium, high and one pulse pattern. |
| Long run time |
About four hours of use at full power from two AAA batteries. |
| Bath friendly |
Waterproof to 20 inches for use in the bath or shower. |
| Anti-dust coating |
Resists lint and dust so the silicone stays clean between uses. |
Specifications
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Size: 5 x 1.3 x 1.3 in
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Weight: 2.5 oz
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Vibration: 3 strengths, 1 rhythm pattern
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Controls: One button
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Run time: About 4 hours at full power
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Power: 2 AAA batteries (alkaline recommended)
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Water resistance: Waterproof up to 20 in
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Materials: Silicone, ABS
In the box
- iroha Zen Matcha
- Tester batteries
- User manual
How to use
Fit two AAA batteries. The ones in the box are testers for checking that it works, so swap in fresh alkaline batteries for regular use. Press the button once to start on the lowest strength, and press again to move up through the three levels and on to the rhythm pattern. Hold it like a pen and begin with the rounded tip around the clitoris, then try laying the ridged side flat and rolling it slowly. Add a drop of water-based lubricant if you want more glide. Press the button until it switches off.
Care
- Use water-based lubricant only.
- Wash with mild soap and lukewarm water or a toy cleaner after use, with the battery cap fully closed.
- Never boil it or put it in a dishwasher.
- Dry it completely before storing.
- Remove the batteries if you will not use it for a while.
More on materials in our material safety guide.
Frequently asked questions
Is iroha Zen rechargeable?
No. It runs on two AAA batteries and has no charging port or cable. Tenga includes tester batteries in the box and recommends alkaline batteries for normal use. A fresh pair gives about four hours at full power.
How strong are the vibrations?
The Zen is a small, battery-powered vibrator, so expect light to moderate vibration rather than deep rumble. It has three strengths and one rhythm pattern. It suits people who like gentle, precise stimulation more than those looking for maximum power.
Can I take it in the bath?
Yes. Tenga rates it waterproof to 20 inches and describes it as suitable for the bath. Check that the battery cap is fully closed before it goes near water, and dry it afterward.
How does it differ from other iroha vibrators?
Most iroha models are rounded, palm-sized and rechargeable. The Zen is a slim stick with pleated ridges, runs on AAA batteries and has a simpler set of modes, which makes it the most straightforward way into the range.
Does lint stick to the silicone?
Less than you might expect. The body has an anti-dust coating that stops dust and lint clinging to the soft-touch surface. A quick rinse before and after use keeps it clean.
Keep it simple and soft
Add the iroha Zen Matcha Stick Vibrator by Tenga to your cart for plain packaging, privacy-safe billing and a mystery gift in every order.
For adult use only. Read the instruction manual before first use. Specifications are the manufacturer's.
