Vest 4 User Manual

1. Close and tighten the waist straps.

2. Close and tighten the chest strap.

3. Pull both shoulder straps in parallel to ensure tight contact of all haptic units to the body.

FINE TUNE YOUR EXPERIENCE

Battery: 14.4V 35000mAh
Charging port: USB-C Power Delivery
Charging Voltage: 20V (With provided PD charger).
Charging Time: 3h at 20V 1.25A
Haptic Freq Response: 1-250Hz
Audio Freq Response: 20-20KHz
Transducer: 6x Osci V2 TRX
Audio Output: Aux 3.5mm TRRS, BT Audio A2DP
Audio Input: Aux 3.5mm TRRS, USB-Stereo Audio, BT Audio A2DP
Bluetooth: Bluetooth 5.0 Audio, BLE App Control and Update
Headphones Amp THD: 1%, f = 1 kHz
Headphones Out S/N Ratio: 98 dB
Headphones Amplifier Output: 138mW

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Keep the Woojer Vest Series 4 and accessories device dry. Precipitation, humidity, and all types of liquids or moisture can contain minerals that will corrode electronic circuits.

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Do not store the device in hot areas. High temperatures can shorten the life of electronic devices, damage batteries, and warp or melt certain plastics.

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Do not store the device in cold areas. When the device returns to its normal temperature, moisture can form inside the device and damage electronic circuit boards.

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Do not attempt to open the device.

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Do not drop. Rough handling can break internal circuit boards and fine mechanics.

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Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device.

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If the device doesn’t work properly, please contact our technical support team through our website, at www.woojer.com/support

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This product contains a rechargeable lithium-ion battery and should not be disposed together with household waste. This product must be discarded in accordance with your local legal requirements.

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As with other devices with permanent magnets, Woojer Vest Series 4 is not suitable for use by persons with pacemakers.

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Do not use Woojer products during pregnancy without approval from your physician.

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If you have any physical condition that may limit your ability to play computer games or engage in moderate physical activity, please consult your physician before using your vest.

• Do not use Woojer Vest Series 4 with headphones/earphones while driving, cycling, or operating any motorized vehicle. This may create a traffic hazard and may be illegal.

• It can be dangerous to play your music with headphones/earphones at high volume while walking or engaged in other activities. Exercise extreme caution and discontinue use in potentially hazardous situations.

• Avoid using headphones/earphones at high volume. Hearing experts advise against continuous loud and extended music play. Keep the volume at a moderate level, so that you are better able to hear outside sound.

• If Woojer Vest Series 4 overheats excessively during use, do not use it and contact our technical support team through www.woojer.com/support

• Avoid charging your Woojer Vest Series 4 at extremely high or low temperatures.

• Liquids might short-circuit the battery and cause a significant risk of fire, other bodily injury, and physical damage.

Federal Communications Commission Notice:

This device complies with part 15 of the FCC rules.

Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interferences that may cause undesired operation.

Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

Note:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet the general RF exposure requirement. The device can be used in portable exposure conditions without restriction.

Canada - Industry Canada (IC)This radio transmitter has been approved by Industry Canada:

This Class B digital apparatus complies with Canadian standard ICES-003.
This device complies with Industry Canada licence exempt RSS standard(s).

Operation is subject to the following two conditions: (1) this device may not cause interference and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

The device has been evaluated to meet the general RF exposure requirement. The device can be used in portable exposure conditions without restriction.

Bluetooth:

The Woojer Vest Series 4 qualified design listing was achieved in accordance with the Bluetooth qualification process as specified within the Bluetooth specifications.

CE Declaration of ConformityWe, Woojer Ltd., declare under our sole responsibility that this Woojer Vest Series 4 product is in conformity with the standards and other normative documents.©2025 – Woojer Ltd.

All rights reserved.The Woojer Vest 4 packaging, logos, icons, “Ready. Play. Feel.”, “Born to Feel”, and “Haptifeels” are trademarks of Woojer Ltd., Woojer USA Inc. and their subsidiaries in the United States and other countries.
Visit: www.woojer.com