Meet Onyx: Studio-Grade EMS, Untethered

For the last decade, EMS training had one big catch: you had to come to us.

To get the kind of full-body muscle stimulation that builds strength, accelerates fat loss, and delivers a studio session's worth of work in 20 minutes, you had to physically walk into a studio, get strapped into a wired suit, and stay tethered to a control unit the size of a small fridge. That worked when your schedule was perfect. It didn't work when you were traveling, when the kids were sick, when work ran late, or when you just wanted to train at home.

We built the Onyx EMS Suit + Power Box to fix that.

What Onyx Is

Onyx is the first fully wireless, mobile EMS system Volt Box has ever offered. It's the same studio-grade muscle stimulation we run in NEOM, KAUST, and Jeddah — packed into a personal suit you can wear and use anywhere.

Two components, one system: the Onyx Suit (20 dry electrodes, ten major muscle groups stimulated simultaneously and individually controllable — no gel, no sticky pads, no straps to readjust mid-set), and the Volt Box Power Box (the wireless control unit that clips onto the suit, pairs with the free Volt Box EMS Mobile app on iOS or Android, and runs the entire workout).

You put the suit on. You clip the Power Box. You open the app. You go. That's the whole setup.

Why It Works

EMS isn't new. The science behind it is decades old, and it's been used in elite sports, physiotherapy, and rehab clinics across Europe long before it ever showed up in a fitness studio. What it does is simple: a low-voltage current contracts your muscles in sync with the movement you're already doing, recruiting deeper muscle fibres than bodyweight or dumbbells can reach on their own.

The result is density. Twenty minutes of EMS produces the muscular workload of roughly 90 minutes of traditional resistance training — and you feel it for days afterward in places you forgot you had.

What was missing was access. Onyx is the access.

What's in the Box

Onyx Suit — 20 dry electrodes, 10 muscle groups (chest, back, abs, glutes, quads, hamstrings, biceps, triceps, lats, lower back). Sizes 3XS to 4XL. Fits women and men, lean or strong, XS through plus.

Volt Box Power Box — wireless, rechargeable, clips onto the suit. Pairs over Bluetooth.

Volt Box EMS Mobile app — iOS and Android. Six preset programs (Strength, Cardio, Endurance, Metabolic, Massage, Recovery) plus the ability to build your own.

Free 1-on-1 onboarding — a certified Volt Box trainer walks you through fit, intensity calibration, and your first program. In person at NEOM, KAUST, or Jeddah; over video anywhere else in the world.

14-day money-back guarantee.

Who It's For

The professional who can train at 6 AM but not at 6 PM. The parent who can spare 20 minutes after the kids are asleep. The athlete using EMS as a recovery and accessory tool. The frequent traveller who refuses to lose progress on the road. The studio member who wants to turn one weekly studio session into three at-home sessions. The over-40 trainee who wants strength without joint load.

If you've ever said "I would train more if I had the time" — that's the problem Onyx is built around.

Onyx is not a magic suit. It's a high-density training tool, and consistency wins.

Weeks 1–2 — Activation in muscles you forgot you had. Posture starts changing.

Weeks 3–6 — Visible core strength. Most users report better sleep.

Weeks 6–12 — Measurable strength gains, body composition shifts, and the kind of baseline energy that makes you stop counting calories and start counting reps.

Two 20-minute sessions a week is the floor. Three is the sweet spot.

Backed By the Science You'd Expect

Volt Box partners with GNESIS, Electro Fitness Technology, and the GluckerKolleg academy in Germany — the same training framework used by European pro clubs and rehab clinics. The suits are CE-certified and built to medical-device tolerances.

Pricing — and Why Today Matters

The full Onyx system is SAR 7,545.75 (was SAR 10,061) during launch — 25% off the list price.

Stack code OnyxEID at checkout for an additional 10% off, bringing your total savings to about SAR 3,270.

Pay in installments with Tabby or Tamara — split your purchase across 4 payments at 0% interest.

OnyxEID is good through June 2. After that, the system returns to normal pricing.

Try It

Twenty minutes. Wherever you are. Studio-grade EMS, untethered.

Get the full Onyx system → https://www.voltboxems.com/product-page/volt-box-ems-power-suit

Use code OnyxEID at checkout for 10% off the full Onyx system. Good through June 2.