Woojer Strap 4

Woojer Strap 4 – Portable Haptic Strap for Gaming, Music, Movies and VR

Feel the Sound, Not Just Hear It

Woojer Strap 4 expands the traditional audio experience by adding haptic feedback, meaning physical sensations that can be felt on the body. Its patented Osci™ transducer analyses the audio signal and converts low frequencies into precise vibrations synchronised with the content being played.

While gaming, users can feel effects such as gunshots, explosions, impacts, engine vibrations and collisions. When listening to music, the device makes it possible to physically experience rhythm and bass energy. During movies, it enhances the intensity of action scenes and special effects. 

Greater Immersion in Gaming and Virtual Reality

Woojer Strap 4 is designed for use with computers, gaming consoles, mobile devices and virtual reality headsets. It can work with standard audio sources through Bluetooth, a 3.5 mm audio cable or a digital USB-C connection.

For games where minimal latency is important, the manufacturer recommends using a wired connection to achieve better synchronisation between sound, visuals and haptic feedback.

Compatible with Wired and Bluetooth Headphones

The integrated dual Bluetooth 5.0 module allows Woojer Strap 4 to receive audio from a source device while simultaneously transmitting it to compatible Bluetooth headphones or speakers.

The device also includes a 3.5 mm headphone output and a Texas Instruments analogue headphone amplifier. Headphone volume and haptic intensity can be adjusted independently. 

Lightweight and Portable Design

The device weighs approximately 240 g and features an adjustable, universal-size strap. Woojer Strap 4 can be worn:

around the waist;
on the chest;
over the shoulder or across the body.

Its compact, foldable design makes it easy to store and transport. A carrying case is also included in the package. 

Up to 10 Hours of Battery Life

The built-in lithium-ion battery provides up to 10 hours of operation, depending on the selected volume and haptic intensity settings. Charging is carried out through the USB-C port and takes approximately three hours.

An automatic power-off function helps reduce unnecessary battery consumption.

Control Through the Woojer App

Woojer Strap 4 works with the dedicated Woojer application. The app allows users to manage the device’s basic functions, sound settings, connection configuration and firmware updates.

Bluetooth Low Energy connectivity is used for communication between the device and the application, including software updates. 

Key Features
portable haptic strap that converts sound into physical sensations;
one patented Osci™ haptic transducer;
haptic frequency range of 1–250 Hz;
advanced DSP digital signal processing;
Bluetooth 5.0 with audio transmission and reception support;
compatibility with Bluetooth headphones;
3.5 mm audio input;
digital USB-C audio input;
3.5 mm headphone output;
support for TRRS headsets with a microphone;
integrated Texas Instruments analogue headphone amplifier;
independent adjustment of headphone volume and haptic intensity;
battery life of up to 10 hours;
USB-C charging;
charging time of approximately three hours;
automatic power-off function;
adjustable universal-size strap;
approximate weight of 240 g. 
Applications

Woojer Strap 4 is suitable for:

gaming on a computer, console or mobile device;
VR games and applications;
watching movies and television series;
listening to music;
exercising and training with music;
relaxation and meditation content.
Connectivity
Bluetooth 5.0;
3.5 mm line input;
digital USB-C audio input;
3.5 mm headphone output;
Bluetooth Low Energy for application connectivity and device updates. 

Technical Specifications

Device type: portable haptic strap
Haptic transducer: 1 × patented Osci™ transducer
Haptic frequency range: 1–250 Hz
Wireless connectivity: Bluetooth 5.0
Audio inputs: USB-C, 3.5 mm stereo
Headphone output: 3.5 mm stereo
Headset support: TRRS with microphone
Headphone amplifier output: 138 mW with 16 Ω headphones
Headphone output distortion: 0.1% THD+N
Battery: built-in 3.6 V lithium-ion battery
Operating time: up to 10 hours
Charging time: approximately three hours
Charging port: USB-C
Weight: 240 g
Size: adjustable, universal fit. 

Package Contents
Woojer Strap 4;
adjustable strap;
carrying case;
USB-C cable;
3.5 mm audio cable. 

Why Choose Woojer Strap 4?

Woojer Strap 4 expands the audio experience without requiring the installation of a large speaker system or a vibration system integrated into a chair. It is lightweight, portable and compatible with multiple audio sources as well as wired and wireless headphones.

It is designed for gamers, movie enthusiasts, music listeners and virtual reality users who want not only to hear digital content, but also to physically experience its rhythm, dynamics and energy.