ElectraStim Sirius quadripolar silicone prostate stimulator

The Sirius is a massager designed for those who want to explore prostate stimulation progressively and with control. Unlike classic vibrating sex toys, this model works through electrical stimulation—you connect it to an ElectraStim stimulator to activate the sensations. I consider this system particularly interesting for beginners in electrical stimulation, as it allows for very precise intensity increases without surprises.

Quadripolar technology and multi-zone stimulation

The Sirius has 4 independent electrodes that can be activated simultaneously or in sequence, depending on your ElectraStim stimulator. This means you can stimulate your prostate, perineum, and the external areas of your buttocks at the same time—hence the name “quadripolar.” Each pulse creates a tingling sensation that pushes the massager against your sweet spot, producing natural contractions without mechanical vibration.

The “Shape and Play” design lets you angle the tip, shaft, and perineal stimulator for a customized fit. I’ve seen quite a few of these in the shop, and what people often say is that this flexibility really changes the experience—you find YOUR position, rather than the one dictated by the default design.

Material and precise dimensions

The Sirius is made of 100% platinum-cured medical-grade silicone—the same material used for medical implants. This ensures biocompatibility and durability. Dimensions: 100 mm of insertable length (4 inches) and 113 mm in circumference at the widest point (4.45 inches). Weight: 224 g—substantial enough to remain stable during use without being cumbersome. Discover my guide to overcoming prostate taboos .

Medical-grade silicone does not retain bacteria, unlike porous materials. Clean it simply with lukewarm water and mild soap after each session. You can also sterilize it in boiling water (5 minutes) if you share it, or use a condom for added safety.

ElectraStim compatibility and box contents

Important: the Sirius does nothing on its own. You MUST connect it to an ElectraStim stimulator (such as the Electrastim Flick or the Electrastim Opus) via 4 2 mm pin connectors. It is a modular system—you purchase the electrode (Sirius) and pair it with the control unit that suits your budget and preferences. Visit our BDSM accessories collection to find a compatible stimulator.

Box contents: 1 black silicone Sirius prostate massager, 1 user manual (in English), and the 4 basic connectors. No stimulator or lubricant included—you will need to purchase them separately.

Who it is really suitable for

Ideal for: men curious about prostate electrical stimulation, those looking for an alternative to vibration, and electro-BDSM practitioners who want to refine their equipment. The adjustable design suits both beginners and experienced users—you can adjust the angle for your comfort. If you are new to the field, I recommend reading our guide BDSM Domination: Everything You Need to Know to Get Started to understand the basics of safe electrical stimulation.

Not suitable for: if you are looking for simple stimulation without external electronics, this is not the right product. If you do not already own an ElectraStim stimulator, the total investment (electrode + control unit) can be high. To get started at a lower cost, I suggest looking at our entry-level BDSM accessories.

• Platinum-cured medical-grade silicone—biocompatible and durable
• Quadripolar stimulation—4 zones simultaneously
• Shape and Play design—adjustable to your body
• Compatible with the modular ElectraStim system
• Easy to clean—sterilizable in boiling water

Friendly tip— Before your first use, clean the Sirius with hot water and soap, then dry it thoroughly. Apply a water-based lubricant to the insertion area and connectors (never use silicone lubricant or oil, as this could damage the contacts). Start at a very low intensity on your stimulator, even if you are experienced—the electrical sensation is different from what you are used to.