Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your Manhattan Wireless Keyboard and Mouse Combo. Please read this manual thoroughly before using the product to ensure proper functionality and to prevent damage.
Safety Information
- Keep the device away from water and excessive moisture.
- Do not expose to extreme temperatures.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified service personnel.
- Dispose of batteries according to local regulations.
Package Contents
- Manhattan Wireless Keyboard
- Manhattan Wireless Optical Mouse
- USB Receiver (Nano-receiver)
- 1 AA Battery (for mouse, included)
- User Manual (this document)
Setup
1. Install Batteries
The mouse requires one AA battery. Open the battery compartment on the underside of the mouse and insert the battery, ensuring correct polarity. The keyboard typically does not require batteries as it is powered via the USB connection, or it might have an internal rechargeable battery (information not provided, assuming standard wireless keyboard setup). If the keyboard has a battery compartment, insert the required batteries (usually AAA or AA, check product for details).
2. Connect USB Receiver
Locate the USB nano-receiver, usually stored within the mouse's battery compartment or a dedicated slot. Plug the USB receiver into an available USB port on your computer (PC or Laptop).

Image: The USB nano-receiver, which controls both the keyboard and mouse, is inserted into a computer's USB port for immediate use.
3. System Recognition
Your operating system (Windows XP/Vista/7/8.1/10 or Mac OS) should automatically detect and install the necessary drivers. This is a plug-and-play process, requiring no additional software installation.

Image: A setup showing the wireless keyboard and mouse connected to a computer, highlighting the reliable 2.4 GHz RF wireless range of up to 25 feet.
Operating Instructions
Keyboard Usage
The keyboard features a standard ergonomic layout for comfortable typing. It includes a full numeric keypad and multimedia shortcuts for quick access to functions.

Image: A close-up of the keyboard, highlighting its ergonomic design and adjustable tilt feature for user comfort.

Image: The numeric keypad and multimedia shortcut keys on the keyboard, designed for quick access and boosted productivity.
Mouse Usage
The optical mouse provides precise cursor control. You can adjust the DPI (Dots Per Inch) sensitivity using the scroll wheel button to switch between 800, 1200, and 1600 DPI settings for varying tasks and preferences.

Image: A close-up of the mouse, illustrating its precision control with adjustable DPI settings (800, 1200, 1600).
Power Management
The combo features auto power management to conserve battery life. The devices will enter a low-power state after a period of inactivity. To reactivate, simply move the mouse or press any key on the keyboard.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the surfaces of the keyboard and mouse. For stubborn dirt, a slightly damp cloth can be used, but ensure no moisture enters the device.
- Battery Replacement: Replace batteries when performance degrades. For the mouse, open the battery compartment and replace the AA battery.
- Storage: When not in use for extended periods, store the keyboard and mouse in a cool, dry place.

Image: The underside of the keyboard, showing stable rubber feet that prevent slipping and protect surfaces.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard/Mouse not responding | Low battery; USB receiver not properly connected; Out of range. | Replace batteries; Re-insert USB receiver; Move devices closer to the receiver (within 25 ft). |
| Lagging or intermittent connection | Interference from other wireless devices; Obstructions; Low battery. | Move away from other 2.4GHz devices; Ensure clear line of sight to receiver; Replace batteries. |
| Mouse cursor erratic | Dirty optical sensor; Using on an unsuitable surface. | Clean the optical sensor with a soft cloth; Use a mouse pad or a non-reflective, opaque surface. |
Specifications
- Brand: MANHATTAN
- Model Number: 178990
- Connectivity: 2.4 GHz RF Wireless
- Operating Distance: Up to 25 ft (7.5 m)
- Keyboard Layout: Full-Size, Ergonomic
- Keyboard Keystroke Lifespan: 10,000,000 keystrokes
- Mouse DPI: Adjustable (800, 1200, 1600 dpi)
- Power Source: Battery Powered (1 AA battery for mouse, included)
- Compatible Operating Systems: Windows XP/Vista/7/8.1/10, Mac OS
- Product Dimensions: 20.6 x 5.6 x 1.5 inches
- Item Weight: 1 pound
Warranty and Support
This Manhattan Wireless Keyboard and Mouse Combo (Model 178990) comes with a 3-Year Manufacturer Warranty. For warranty claims, technical support, or further assistance, please contact Manhattan Products customer service. Refer to the official Manhattan website for the most up-to-date contact information and support resources.
Note: This product is from a small business brand. Your support is appreciated.
Additional Resources
For more information and product updates, visit the official MANHATTAN Store on Amazon.





