4B DoubleO 6 Blueberry Cock Ring by Screaming O

The 4B DoubleO 6 Blueberry Cock Ring by Screaming O is a vibrating penis ring made from soft SEBS material with an ABS bullet that delivers five vibration speeds plus a pulse pattern. It extends erections and provides over 30 minutes of waterproof runtime, making it suited to longer sessions and couples play.

The product itself

The 4B DoubleO 6 Blueberry Cock Ring by Screaming O combines a soft, stretchy SEBS ring with a fixed ABS vibration bullet positioned on the upper surface of the shaft. When worn, it restricts blood flow to maintain firmness during sex or masturbation, while the bullet delivers vibration that both partners feel. This ring stands apart from basic cock rings because it pairs consistent stimulation with a 30-minute runtime—far longer than entry-level vibrating models.

The five-speed vibration system lets you start gently and build intensity gradually, with a fifth setting that pulses rather than maintains steady vibration. This variation keeps sensation fresh during extended sessions. The waterproof construction means you can use it in the shower or bath, and it rinses clean immediately after play without removing the battery.

The features that matter

• Five vibration speeds: Progressive intensity settings let you tease and build, then shift into high-power mode when ready.
• Pulse pattern: A fifth mode that alternates vibration on and off, creating surprise variation without stopping entirely.
• 30+ minute battery life: Runs continuously on one 4LR44 battery, eliminating the frustration of mid-session power loss.
• Waterproof design: Fully sealed construction allows shower and bath use; cleaning requires only a quick rinse under warm water.
• Soft SEBS material: The stretchy ring sits comfortably against skin for hours, without pinching or cutting off circulation when fitted properly.

Measurements and materials

• Ring material: SEBS (synthetic elastomer), soft and stretchy with no hard edges or seams
• Bullet material: ABS plastic with polyurethane coating for durability and smooth finish
• Colour: Blueberry (dark blue)
• Size: One size; inner diameter expands to fit most penis girths when relaxed, stretches to 5–6 cm when worn
• Weight: Approximately 30 grams
• Power: One 4LR44 (1.5 V) alkaline battery, replaceable
• Runtime: 30+ minutes continuous use per battery
• Waterproof rating: Fully waterproof; submersible for shower and bath play
• In the box: Ring with integrated bullet, one 4LR44 battery (pre-installed), instruction sheet

Fitting a cock ring properly

Start by ensuring the ring is clean and dry. Gently stretch the SEBS ring and guide it over the head of your penis, then roll it down toward the base of the shaft. The ring should sit snugly but not painfully tight—you need to be able to slide one finger underneath it comfortably. The vibration bullet naturally sits on top; if it rotates, gently nudge it back into position. Wear it for 5–10 minutes first to assess comfort, then extend wear time gradually as you adapt.

Removal is straightforward: roll the ring back toward the head and ease it off. If you find it too tight, try applying a small amount of water-based lubricant to your skin first; this reduces friction and makes stretching easier. Unlike Electro Cock Rings, this ring needs no special preparation or conductive gel—simply fit it and activate the vibration using the control button. If numbness, colour change, or pain occurs, remove it immediately and wait 10 minutes before reinserting.

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Care and storage

Rinse the ring under warm running water immediately after use to remove any body fluids or lubricant. Use a soft cloth to dry it thoroughly, paying attention to the seams where the bullet joins the ring. Store it in a cool, dry place away from direct sunlight and extreme heat. Replace the battery when vibration weakens or stops. Keep it away from sharp objects and do not expose it to silicone-based lubricants, which can degrade the SEBS material over time.

Read more on this

Vibrating rings work through blood restriction and external stimulation to improve sensation and erection quality during sex or solo play. For more detail on how rings function, their history, and how to choose between types, visit the Cock Rings blog.

What to expect

The 4B DoubleO 6 delivers genuine power throughout its runtime. Many users expect vibrating rings to weaken after 15 minutes, but this model maintains consistent intensity across the full 30+ minute battery life. The five speeds progress logically from a gentle tease to a forceful buzz; the pulse mode surprises users who expect simple on-off operation, and most find it adds welcome variety without overwhelming sensation.

First-time fitting takes practice. The SEBS material stretches readily, but some users initially struggle with rolling it down smoothly over the glans; applying a small amount of water-based lubricant beforehand solves this. Once fitted, the ring stays in place during sex and does not slip or rotate unexpectedly. Removal is equally straightforward and causes no discomfort if you take 10 seconds to ease it gently.

Waterproofing is genuine. This ring functions identically in the shower or bath as it does in dry conditions, and its sealing means you can rinse it under running water immediately after use without risk of water entering the battery compartment. Users commonly report that shower play adds novelty because the warm water and ring together create a different sensation profile than dry use.

Battery life is reliable and predictable. The 4LR44 battery maintains power until it dies rather than gradually fading, so you know exactly when replacement is needed. Most users appreciate this; it removes the guesswork. Replacement batteries are inexpensive and widely available.

How it compares

Why it's worth having

Get the 4B DoubleO 6 Blueberry Cock Ring by Screaming O if you want a vibrating ring that reliably lasts a full session without power fading. The five-speed system and pulse mode give you genuine control over sensation, and the waterproof design opens up play options that basic rings cannot match. Order it from Malechastity.com.au with discreet Australia-wide delivery, and experience what 30+ minutes of consistent vibration actually means for your erections and pleasure. Genuine Brands, Backed by Warranty.