BYTECH MSWS139 Eclipse Wireless Mouse User Manual

Included Items

• 1 (One) Wireless Mouse 3.85in. x 2.44in. x 1.1in. (9.5cm x 6.2cm x 2.8cm)
• 1 (One) User Manual
• 1 (One) USB receiver

Features

• DPI: 1600
• 3 buttons with scroll wheel
• No pairing required, Plug and Play via 2.4Ghz USB receiver
• Auto power function, saves and prolongs battery life

USB Receiver

The USB receiver can be found stored in a slot adjacent to the battery bay under the battery bay door.

• Flip the mouse over and remove the battery bay door. You will see a smooth black rectangular object.
• Remove it carefully by hooking a fingernail into the groove along the surface that faces the battery bay and lift it up slowly to free it.
• Store the receiver in this slot when the mouse is not in use so that it doesn’t get lost.

How to Use

• Insert the USB receiver into your computer’s USB port.
• Place 1 (One) X AAA 1.5V Alkaline Battery (not included) into the battery compartment of the mouse.
• Your computer should recognize the mouse instantly. Be sure to check your computer’s settings if it is not detected.
• Please remember to remove the USB receiver when you are not using the device.

Regulatory Information

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.

Caution: Any changes or modifications not expressly approved could void the user’s authority to operate the equipment.

FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. 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 interference that may cause undesired operation. FCC ID: 2AHN6-MSWS139

Troubleshooting

• If device won’t connect, try the following:
• Be sure the USB receiver is connected to your computer.
• Be sure the USB receiver is not damaged.
• Check your computer’s input settings.
• Try new battery in the mouse.
• Restart your computer.

Specifications

• Wireless optical mouse
• DPI: 1600
• 3 buttons with scroll wheel
• No pairing required, plug-and-play via USB receiver
• 2.4Ghz USB receiver
• USB receiver stores conveniently in the battery compartment
• Supports Windows® 7-11 and Mac OS®

Warranty – 12 monthsPlease visit our website: Bytechintl.com/warranty . ©2026 BYTECH NY INC. BYTECH™ is a registered trademark of Bytech NY INC. *All Trademarks and copyrights are the property of the respective companies. *Mac OS® is a registered trademark of Apple Inc. *Windows® is a registered trademark of Microsoft Corporation. *Bytech NY Inc. has no affiliation to Apple Inc. or Microsoft Corporation. *Photos are for illustration purposes only. *Requires 1 (One) X AAA 1.5V Alkaline Battery (Not Included).

Contact Information

BYTECH

2585 West 13th Street, Brooklyn, NY 11223. BYTECHintl.com © 2026 BYTECH NY INC. Made in China

Battery Warnings

WARNING: TO AVOID BATTERY LEAKAGE

1. The batteries used with this product are small parts and should be kept away from small children who still put things in their mouths. If they are swallowed, promptly see a doctor and have the doctor phone American Association of Poison Control Centers (1-800-222-1222).
2. Always purchase the correct size and grade of battery most suitable for intended use.
3. Do not mix old and new batteries, alkaline, standard (Carbon-Zinc) or rechargeable (Nickel-cadmium) batteries.
4. Clean the battery contacts and those of the device prior to battery installation.
5. Ensure the batteries are installed correctly with the regard to polarity (+ and -).
6. Always remove batteries if consumed or if product is to be left unused for a long time.