1. Introduction
Thank you for purchasing the Ewin Wireless Numeric Keypad. This device is designed to enhance your data entry experience with its versatile connectivity and compact design. Please read this manual carefully to ensure proper use and optimal performance.

Image: Overview of the Ewin Wireless Numeric Keypad.
2. Package Contents
Please check the package contents to ensure all items are present:
- Ewin Wireless Numeric Keypad
- 2.4G USB-A Wireless Receiver
- USB-A to Type-C Adapter
- USB Charging Cable

Image: The numeric keypad, 2.4G wireless receiver, and Type-C adapter.
3. Product Features
- Dual Device Connectivity: Connects to two devices simultaneously via 2.4G wireless and Bluetooth 5.2, allowing easy switching.
- Multi-System Compatibility: Compatible with Windows, Mac, iOS, iPadOS, and Android operating systems.
- Optimized for Efficiency: Features dedicated TAB and '00' keys for faster data entry, especially useful for spreadsheet applications like Excel.
- 37-Key Layout with Shortcut Functions: Includes essential keys like Esc, Tab, Shift, Delete, BS, PgUp, PgDn, Home, and End for enhanced productivity.
- Japanese Layout Support: Designed to correctly input Japanese characters and symbols without layout issues.
- Type-C Rechargeable & Long Battery Life: Offers up to 60 hours of continuous use on a 2-3 hour charge, with a standby time of up to 6 months.
- Compact and Lightweight Design: Weighs only 140g, making it highly portable.

Image: The compact and lightweight design allows for easy portability.
4. Setup and Connection
4.1 Power On/Off
Locate the power switch on the side or back of the keypad. Slide it to the 'ON' position to power on the device. The indicator light will illuminate. Slide to 'OFF' when not in use to conserve battery.
4.2 2.4G Wireless Connection
- Ensure the keypad is powered on.
- Insert the 2.4G USB-A wireless receiver into an available USB-A port on your computer or device. If your device only has Type-C ports, use the provided USB-A to Type-C adapter.
- Press Shift + 2.4G on the keypad to switch to 2.4G mode. The 2.4G indicator light will turn on.
- Your device should automatically recognize the keypad.
4.3 Bluetooth Connection
- Ensure the keypad is powered on.
- Press Shift + BT on the keypad to switch to Bluetooth mode. The Bluetooth indicator light will flash, indicating it's in pairing mode.
- On your device (computer, tablet, smartphone), go to Bluetooth settings and search for new devices.
- Select "Ewin Tenkey" or a similar name from the list of available devices to pair.
- Once paired, the Bluetooth indicator light on the keypad will stop flashing and remain solid.

Image: The keypad demonstrating dual connectivity to a laptop and a tablet.
4.4 Switching Between Connected Devices
If you have connected to two devices (one via 2.4G and one via Bluetooth), you can switch between them by pressing Shift + 2.4G or Shift + BT.
4.5 System Language Setting (for Windows)
If some symbols (e.g., parentheses, equals sign) are not inputting correctly, your system might be recognizing the keypad as an English layout. Follow these steps to change the keyboard layout to Japanese:
- Go to Settings → Time & Language → Language & Region.
- Click the ... (three dots) next to "Japanese" and select Language options.
- Under "Keyboards", click Change layout.
- Select "Japanese Keyboard (106/109 Key)" or "Use connected keyboard layout" from the hardware keyboard layout change options.
- Restart your PC for the settings to take effect.
For iOS devices, if you experience similar issues, remove all keyboard connection records from your iPad/iPhone Bluetooth settings, restart the device, and then re-pair the keypad.
5. Operating Instructions
5.1 Key Functions
The keypad features a 37-key layout, including standard numeric keys, arithmetic operators, and special function keys:
- Numeric Keys: 0-9, 00
- Arithmetic Operators: +, -, *, /
- Special Keys: Esc, Tab, Shift, Delete, BS (Backspace), Enter
- Navigation Keys: PgUp, PgDn, Home, End
5.2 NumLock Functionality
The NumLock function is primarily supported on Windows devices. On macOS and iOS devices, the numeric keypad area will always function as numeric and arithmetic input, regardless of the NumLock key state.

Image: The NumLock LED indicator shows the on/off status at a glance.
5.3 Excel Optimization
The inclusion of the Tab key and the 00 key significantly speeds up data entry in spreadsheet applications like Excel. The '00' key provides smooth input without delay.

Image: The TAB and '00' keys are highlighted for efficient Excel operations.
6. Charging
The keypad is equipped with a Type-C charging port.
- Charging Time: Approximately 2-3 hours for a full charge.
- Usage Time: Up to 60 hours of continuous use on a full charge.
- Standby Time: Up to 6 months when the power switch is on and no operations are performed.
Important Charging Notes:
- If key input becomes sluggish, the battery may be low. Please charge the device.
- Due to the keypad's small battery capacity, it is recommended to charge it using a low-output charger (e.g., 5V 2.4A) or a computer's USB port.
- Do not use fast charging heads, as this may damage the battery.

Image: The keypad connected for Type-C charging, showing battery status.
7. Compatibility
The Ewin Wireless Numeric Keypad offers broad compatibility across various operating systems and devices:
- Operating Systems: Windows 8, 10, 11, macOS, iOS, iPadOS, Android, Chrome OS.
- Devices: Macbook, Windows Laptops/Desktops, iPads, iPhones, Android Tablets/Smartphones.

Image: The keypad shown with various devices, illustrating its multi-system compatibility.
8. Maintenance
To ensure the longevity and optimal performance of your keypad, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the surface of the keypad. For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution, then wipe dry immediately. Avoid harsh chemicals or abrasive materials.
- Storage: Store the keypad in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the keypad or exposing it to excessive force, which could damage internal components.
- Liquid Exposure: Keep the keypad away from liquids. In case of accidental spills, power off the device immediately and allow it to dry completely before attempting to use it again.
9. Troubleshooting
If you encounter issues with your Ewin Wireless Numeric Keypad, please refer to the following common problems and solutions:
Q1: Key input is not responding.
A:
- Ensure the keypad's power switch is in the 'ON' (green) position. If the LED lamp does not respond after turning on the power, try charging the keypad first.
- Verify that you have switched to the correct connection mode (2.4G or BT) for your desired device by pressing Shift + 2.4G or Shift + BT.
- If using 2.4G wireless, try re-inserting the 2.4GHz wireless receiver into the USB port, or try a different USB port.
- If using Bluetooth, delete the keypad's pairing record from your device's Bluetooth settings and re-pair it.
Q2: Calculator key / NumLock key is not responding / NumLock lamp is not lighting.
A: The calculator key and NumLock function are only supported on Windows devices. On macOS and iOS devices, the numeric keypad area will function as numeric and arithmetic input regardless of the NumLock key state, and the NumLock lamp will not illuminate.
Q3: Some symbols (e.g., parentheses '(', ')', equals sign '=') are not inputting correctly.
A: This usually indicates that your device is recognizing the keypad as an English layout. Please refer to Section 4.5 System Language Setting for instructions on how to change the keyboard layout to Japanese on Windows or re-pair on iOS.
Note: This product is a Japanese layout keyboard. If you use it in combination with an English layout keyboard, you may experience input discrepancies even after adjusting settings. It is recommended to use it with other Japanese layout keyboards.
10. Specifications
| Brand | Ewin |
| Model Number | EW-RB024 (Manufacturer Model: KB146) |
| Connectivity Technology | Bluetooth 5.2, 2.4G Wireless (USB-C) |
| Compatible Devices | Macbook, Windows PCs, iOS (iPad, iPhone), Android devices |
| Keyboard Description | Wireless Numeric Keypad |
| Special Feature | Rechargeable |
| Color | Silver |
| Keyboard Backlight Color Support | Single Color |
| Style | Modern |
| Product Dimensions (L x W x H) | 14.6 x 11.9 x 1.5 cm |
| Switch Type | Tactile |
| Keyboard Layout | QWERTY (Japanese Layout) |
| Hand Orientation | Ambidextrous |
| Number of Keys | 37 |
| Item Weight | 140 grams |
| Country of Origin | China |
11. Warranty and Support
The Ewin Wireless Numeric Keypad comes with a 1-year warranty against manufacturer defects.
If you encounter any issues or have questions regarding your product within 18 months of purchase, please do not hesitate to contact Ewin customer support. We are committed to providing assistance and ensuring your satisfaction.





