The OOVO Sing Ring
The OOVO Bestseller
The Sing Ring.
A patented vocal training tool you'll actually use. Four resistance levels in one solid antimicrobial brass device. Peer-reviewed in the Journal of Voice. Made by OOVO in Santa Monica.
★★★★★ 4.5 / 5 · across 500+ reviews
$49 · Free US shipping · Includes carrying case
Shop the Sing Ring →Peer-Reviewed Research
Five months later, they were still doing the exercises.
In a 2024 study published in the Journal of Voice, heavy-voice-use professionals using the OOVO Sing Ring as part of a daily SOVT protocol showed statistically significant improvements in vocal effort and the lowest dropout rate of any group tested. Five months after the study ended, in an unannounced follow-up, more than half of all participants were still doing the exercises on their own.
Sara Davis, M.A., CCC-SLP; Lauren Mikhail, M.A., CCC-SLP; Meredith Tabangin; Mekibib Altaye. “Does the Daily Practice of a Structured Voice Exercise Protocol Affect the Fitness Instructor's Self-Perceived Vocal Effort, Vocal Fatigue, and Voice Handicap?” Journal of Voice, 2024.
Read the study →The Science
The most-studied warm-up in voice science.
Semi-occluded vocal tract phonation (what voice scientists call SOVT) creates back-pressure that balances air pressure across your vocal folds. The folds vibrate more efficiently, with less collision force. Think of it as low-impact resistance training for your voice: more reps, less wear.
Decades of clinical research, popularized by Dr. Ingo Titze at the National Center for Voice and Speech, established SOVT as one of the most validated techniques in modern vocal pedagogy. The Sing Ring puts that research in your pocket.
Four resistances in one brass device.
Find your level.
Four resistance levels in a single device, including a 2.5mm aperture stronger than the Necklace's 3mm professional standard. The equivalent of four different-diameter straws in your pocket, with instant switching by covering or uncovering the diamond apertures. No juggling, no swapping, no losing one in your bag.
Pocket-sized, with a case.
Solid brass, hand-held, smaller than a tube of lipstick. Includes a zippered carrying case with carabiner clip so it travels with you.
Antimicrobial brass.
Made from C26000 cartridge brass, the same alloy family used in professional wind instruments. It's also one of the copper alloys recognized by the U.S. EPA for natural antimicrobial properties. Resists odor and surface degradation over time.
Patinas with use.
Like any fine brass instrument, the Sing Ring develops a unique patina with daily handling. Polish back to bright at any time, or wear the patina as a record of how much you've used it.
From the pros
“Chic as hell. I use it twice a day on show days. It changed the game for me.”
Scott Hoying · Pentatonix
Sing Ring vs. Vocal Straw Necklace
Where most singers start.
The Sing Ring ($49) gives you four resistance levels in one device, the most flexible way to discover your preferred feel. The OOVO Vocal Straw Necklace ($119 to $159) is precision-engineered to a single 3mm professional resistance and crafted in jewelry-grade sterling silver, gold vermeil, or rose gold vermeil. Wear it daily; it's built to last a career.
See the full comparison →Frequently asked questions
How long is each session?
Five minutes per session, up to five times per day. Many singers use it as part of a daily warm-up; others reach for it after long rehearsals or speaking days to help the voice recover.
Beginner or pro?
Both. The Sing Ring's variable resistance makes it the easiest entry point for new SOVT users, and the same variability makes it a favorite of working pros who want to dial in different feels for warm-up vs. recovery vs. range work.
Will straw singing fix vocal strain?
SOVT exercise is widely used by voice teachers and clinicians to ease vocal effort and support recovery from heavy use. It is a training and conditioning tool, not a medical device. If you have persistent hoarseness, pain, or vocal injury, consult a laryngologist or licensed Speech-Language Pathologist.
When does it ship?
Free US shipping on every order. Most domestic orders arrive in 3–5 business days. We ship internationally to 25+ countries; international rates are calculated at checkout.
What's your return policy?
30 days from delivery, in original condition. For US orders, we cover return shipping with a prepaid label. Just email oovo@oovostraw.com with your order number. International returns are accepted but customer-paid. All OOVO products are also backed by a 6-month warranty against defects.
How do I clean it?
Polish with a clean cloth. To sanitize, rinse with mild soap and warm water, then dry thoroughly. Add the OOVO Care Kit if you want a polishing cloth, cleaning brush, and microsuede pouch.
Try the Sing Ring.
$49 · Free US shipping · 30-day free US returns · 6-month warranty
Shop the Sing Ring →Disclaimer: This product description has not been evaluated by the FDA. The Sing Ring is a vocal training tool, not a medical device. It is not intended to diagnose, treat, cure, or prevent any disease or health condition. Antimicrobial brass references describe the properties of the brass instrument itself and are not health claims about the user.