EK04 Mini
Wireless Ergonomic Keyboard
User Manual
US
support@protoarc.com
(+1) 866-287-6188
Mon-Sun: 9AM – 1PM; 2PM – 6PM PT (Eastern Time)
*Closed during Holidays
Packing List
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Keyboard* 1
▼ ▼ ▼
Type-C Charging Cable* 1 User Manual* 1 USB Receiver* 1
Product Features
- Multimedia Function Keys
- Caps Lock / Low Power / Charging Indicator
- 2.4G Indicator
- BT1 Indicator
- BT2 Indicator
- Type-C Charging Port
- Power Switch
- USB Receiver
- Keyboard Tilt Legs
2.4G USB Connection
(1)
1. Turn the power switch to ON.
(2)
2. Press the 
button until the 2.4G indicator lights up, and the keyboard enters 2.4G mode.
(3)
3. Take out the USB receiver from the bottom of the keyboard.
(4)
4. Plug the USB receiver into the USB port of the computer, then the keyboard can work normally.
Bluetooth Connection
(1)
1. Turn the power switch to ON.
(2)
2. Press the channel switch button 
/ 
until the corresponding channel indicator is on.
Long press the channel switch button for 3~5 seconds until the corresponding channel indicator flashes quickly, the keyboard enters Bluetooth paring mode.
(3)
3. Turn on the Bluetooth settings on your device, search or select “EK04 Mini” and start Bluetooth pairing until the connection is completed.
Mode Switch Method
After channels / / are all connected, press the corresponding channel button to switch between multiple devices.
Tips:
FN lock is on: FN + / / can also switch channels.
Charging Guide
- When the battery level is low, the indicator light will turn red and begin to flash until the keyboard is powered off.
- To charge the device, insert the Type-C port into the keyboard and the USB-A port into the computer. The red indicator light stays on while charging.
- A full charge typically requires 2 to 3 hours per cycle, and the indicator light will turn green when fully charged.
Notice:
If the keyboard s low battery, there will be delays, freezes and other problems. Please connect to the power supply for charging in a timely manner to ensure that the keyboard has sufficient battery power to get normal performance.
| Buttons | Windows | Android | iPad | Mac OS |
 |
2.4G Channel | 2.4G Channel | 2.4G Channel | 2.4G Channel |
 |
BT1 Channel | BT1 Channel | BT1 Channel | BT1 Channel |
 |
BT2 Channel | BT2 Channel | BT2 Channel | BT2 Channel |
 |
Increase brightness | Increase brightness | Increase brightness | Increase brightness |
 |
Decrease brightness | Decrease brightness | Decrease brightness | Decrease brightness |
 |
Window switching | Window switching | Task view | Multi-window preview |
 |
Task view | Task view | Window switching | Window switching |
 |
Show desktop | Go home | Go home | Show home |
 |
Search | Search | Search | Search |
 |
Mute | Mute | Mute | Mute |
 |
Volume down | Volume down | Volume down | Volume down |
 |
Volume up | Volume up | Volume up | Volume up |
 |
Screenshot | Screenshot | Screenshot | Screenshot |
 |
Press FN+ESC to turn ON / OFF the FN function | |||
FN lock default is off: Pressing directly will activate multimedia functions, and press FN + F1-F12 to activate the F key functions.
FN lock is on: Pressing directly will activate F1-F12 and press FN + F1-F12 to activate multimedia functions.
When the Fn lock is turned on/off, the corresponding channel light will light up for 3s (white light) and then tum off.
Product Parameters
| Battery capacity | 280mAh |
| Working voltage | 3.7V |
| Working current | ≤2mA |
| Sleeping current | ≤0.03mA |
| Standby time | 200 Days |
| Working time | 140 Hours |
| Charging time | 2-3 Hours |
| Wake up way | Press any key |
| Dimensions | 332 x 230 x 32 mm / 13.1 x 9.1 x 1.3 in |
| System Compatibility | 2.4G: Windows System Bluetooth: Windows 7 to 11, MacOs 10.10 or later, iPadOS 7 or later, Android 4.4 or higher. |
How to Use Special Characters in British English
On MacOS/iPadOS/iOS system:
| Press the key and you can type the symbol shows in the right square frame. | |||
 |
§ |  |
2 |
 |
\ |  |
‘ |
 |
` | ||
Press and hold “ “, then press the corresponding key, you can type the symbol shows in the right square frame. |
|||
|
± | |
@ |
|
| | |
“ |
|
~ | ||
Press and hold the key “ “, then press the corresponding key, you can type the symbol shows in the right square frame |
|
|
€ |
On Android/Windows:
| Press the key and you can type the symbol shows in the right square frame. | |||
|
` | |
2 |
|
# | |
‘ |
|
\ | ||
| Press and hold the key ““, then press the corresponding key, you can type the symbol shows in the right square frame. |
|||
|
¬ | |
“ |
|
~ | |
@ |
|
| | ||
Press and hold the key “ “, (the key on the right side of the keyboard), then press the corresponding key, you can type the symbol “¦” and ” €”. |
|||
|
¦ |  |
€ |
Tips
- If the Bluetooth connection is not working properly, turn off and turn on the keyboard or to restart the device’s Bluetooth and attempt to reconnect. Or delete the extra Bluetooth option name in the Bluetooth connection list of the device and reconnect.
- To switch to a successfully connected channel, press the channel button and wait for 3 seconds before continuing to use.
- The keyboard has a memory function. When it connected on a specific channel, turn off the keyboard and turn on again, they will automatically connect to the default channel and this channel indicator is on.
- For UK users, Why is the keyboard English US (QWERTY) layout when typing?
Before using the keyboard, please set the keyboard language to English (UK) first:
(Samsung tablet for example) Settings > General management > Samsung Keyboard settings > Languages and types > Manage input languages > Choose English (UK)
(OPPO mobile phones for example) Setting > More setting > Language & input > Physical Keyboard > EK04 Mini > Set keyboard layouts > Choose English (UK)
Sleep Mode
- When the keyboard is not used for more than 60 minutes, it will automatically enter into sleep mode and the indicator light will turn off.
- When using the keyboard again, just press any key, the keyboard will wake up within 3 seconds, and the lights come back on and keyboard starts working.
Safety Warning
IMPORTANT: To reduce risk of fire, electric shock, or injury, follow these safety instructions.
Charging safely: Use only the provided cable. Charge in a well-ventilated, dry area away from inflammable materials.
Battery Handling: Do not attempt to replace the item’s lithium battery. Battery replacement should be conducted by qualified personnel to prevent hazards.
Heat Exposure: Avoid leaving the item in high-temperature environments or in direct sunlight, which could result in a fire hazard.
Liquid Exposure: Keep the item away from water and liquids. Do not use if wet until thoroughly dried.
Damage and Leakage: Cease usage and consult customer service if the item is damaged or the battery leaks.
Correct Disposal: Follow local regulations for disposing of electronic devices and batteries. Do not dispose of with household waste.
Radio Frequency Interference: This device may cause interference with other electronics. Keep a safe distance from sensitive devices.
child safety: Keep the item and its components out of reach of children to avoid choking or battery ingestion hazards. Never allow children to handle the item unsupervised.
CAUTION: Non-compliance with the above warnings can lead to serious injury or property damage.
For further assistance or information, please contact our customer service.
Emergency Contact: +1 866-287-6188 (United States)
EU Declaration of Conformity
| Declared Object: | Wireless Ergonomic Keyboard |
| Model: | EK04 Mini |
| Rating: | 3.7V ⎓ 10mA |
| Input: | 5V ⎓ 250mA |
| Place of Production: | Made in China |
| Manufacturer: | Shenzhen Hangshi Electronic Technology Co., LTD |
| Email: | chen.zhao@bow.cn |
| Address: | Floor 2 Building A, Zone , Democratic West Industrial Zone, Democratic Community, Shajing Street, Bao’an District, Shenzhen City, Guangdong Province, China, 518104 |
| European Representative: | 
Business name: g.L.L.
Business name: AMANTO INTERNATIONAL TRADE LIMITED |
| It is our sole responsibility to declare that the above products are In full compliance with Directive 2014/53/EU, 201/85/EU (as amended) | |
| Position: | Managing Director |
| signature: |  |
| Date of sign: | 2022.1.5 |
| EU agent name: |  |
| Date of sign: | 2022.1.5 |
Documents / Resources
 |
ProtoArc EK04 Mini Ergonomic Keyboard [pdf] User Manual EK04 Mini Ergonomic Keyboard, EK04, Mini Ergonomic Keyboard, Ergonomic Keyboard, Keyboard |