Strap 4
Strap 4
In stock
Strap 4
Feel it. Anywhere.
Strap 4 transforms audio into precise physical sensation in a remarkably small, wearable form.
Small form. Serious feeling.
At the heart of Strap 4 is Woojer's patented OSCI™ haptic technology, engineered to reproduce low-frequency audio as a detailed physical sensation you can feel directly on the body.
Wear it around your waist, across your chest or cross-body. Then choose what you want to experience.
Sound goes with you.
Music · Gaming · Movies · VR · Workouts · Meditation · Breathwork · Relaxation
Use Strap 4 when you want more immersion, a stronger connection to the rhythm, or a physical way to step out of your head and into the experience.
Your Woojer. Your control.
Use the Woojer Device Manager to configure Strap 4, manage compatible connections, update firmware, and control supported device settings.
Strap 4 also works with the Woojer Wellness App, giving you access to Woojer-optimized wellness experiences for relaxation, meditation, breathwork, recovery routines, and more.
Use Woojer. Or use anything.
Connect through Bluetooth, USB-C digital audio, or 3.5 mm audio and experience your own music, games, movies, meditation apps, soundscapes, and compatible content.
Designed to disappear into your day.
- Patented OSCI™ haptic technology
- 1–250 Hz haptic frequency range
- Bluetooth 5.0 connectivity
- USB-C digital audio
- 3.5 mm audio input
- Bluetooth headphone support
- Independent audio and haptic control
- Adjustable wearable fit
- Approximately 240 g
- Up to 10 hours of battery life
What’s included
- Woojer Strap 4
- Carrying pouch
- USB-C charging cable
- 3.5 mm audio cable
GOOD QUESTIONS
Everything you want to know.
Where does Woojer ship from, and how long does delivery take?
From the warehouse closest to you: United States, United Kingdom (London), European Union (Netherlands) or Hong Kong. The delivery estimate for your address is shown at checkout, and you receive a tracking link the moment your order leaves the warehouse.
Will I pay customs or import fees?
In the UK and the EU, no: VAT is included in the price you see, so nothing is charged at the door. In the US, state sales tax is added at checkout. Orders to Canada, Norway, Hong Kong, Taiwan and other regions outside the US and EU may be charged local import taxes on delivery; checkout tells you before you pay.
What is the Woojer return policy?
Thirty days, your call. If a Woojer product is not for you within 30 days of delivery, request a return authorisation through support and send it back in its original box with all accessories for a refund.
What warranty comes with Woojer products?
A 12-month limited warranty against defects in materials and workmanship from the day it is delivered. If anything is wrong, we repair it, replace it or refund it. Your woojer.com order number is your proof of purchase.
Is Woojer HSA/FSA eligible²?
Yes, for qualified US customers, through our partner Truemed: the MAT, MAT Plus, MAT Pro, Vest 4 and Strap 4. Select Truemed at checkout, complete a short health assessment reviewed by a licensed provider, and pay with your HSA or FSA card. HSA/FSA tax savings vary.
How do I reach Woojer support?
Our support team helps with setup, orders, returns and warranty. Visit the support page to open a ticket, track your order or find your product's guide.