Vest 4S User Manual

Warning

Do not use the product before consulting your medical doctor if you:

• Have a heart condition or a pacemaker.
• Are pregnant.
• Have a history of blood pressure issues.
• Have any other medical condition.

Do not use the product while charging.
Do not replace the battery.
Do not charge or use the device if it gets uncomfortably hot.

Do not wear the Woojer directly against bare skin. Always wear it over clothing. Prolonged direct contact with the body may cause discomfort, skin irritation, or heat-related injury. If the device feels too warm or uncomfortable, stop using it immediately and allow it to cool before further use.

Care and Maintenance

• 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.
• 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.
• 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.
• Do not attempt to open the device.
• Do not drop. Rough handling can break internal circuit boards and fine mechanics.
• Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device.
• If the device doesn't work properly, please contact our technical support team through our website, at www.woojer.com/support

Safety and Warnings (read carefully before use)

• 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.
• As with other devices with permanent magnets, Woojer Vest Series 4 is not suitable for use by persons with pacemakers.
• Do not use Woojer products during pregnancy without approval from your physician.
• 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 Woojer.
• 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.

Declaration of Conformity, Certificates, and Safety Protocols

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.

L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : 1. L'appareil ne doit pas produire de brouillage ; 2. L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

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 Conformity

We, Woojer Ltd., declare under our sole responsibility, that this Woojer Vest Series 4 product is in conformity with the standards and other normative documents.

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©2026-2027 Woojer Ltd. All rights reserved. The Woojer Vest 4 packaging, logos, icons, "Ready. Play. Feel.", "born to feel" and "#ALLTHEFEELS" are trademarks of Woojer Ltd, Woojer USA Inc. and their subsidiaries in the United States and other countries.