How does the CoolKiller PolarBear 2 in 1 switch between a number pad and a calculator?

The CoolKiller PolarBear 2 in 1 seamlessly transitions between a mechanical number pad and a calculator. When connected via the included keyboard cable, it functions as a numeric keyboard. Simply unplug the cable to use it as an 18-key mechanical calculator.

Can I customize the switches on the CoolKiller PolarBear number pad?

Absolutely! The CoolKiller PolarBear features hot-swappable sockets, allowing you to easily replace the default ice-blade linear switches with any 3 or 5-pin MX-style mechanical switches. This customization requires no soldering, making it perfect for DIY enthusiasts.

What makes the typing experience on the PolarBear number pad unique?

The PolarBear number pad is gasket-mounted, which means it uses top-grade gaskets and silicone to absorb keypress impacts. This design provides a flexible, softer, and cleaner typing experience, reducing strain during long typing sessions.

How do I control the LED backlight on the CoolKiller PolarBear?

To control the LED backlight, use the shortcut keys '×' then '÷'. This will turn the backlight on or off. Additionally, the backlight automatically enters sleep mode after 2 minutes of inactivity to conserve energy.

Is the CoolKiller PolarBear compatible with my operating system?

Yes, the CoolKiller PolarBear is compatible with a wide range of operating systems, including Windows, MacOS, and Linux. It works seamlessly with computers, PCs, and desktops.

How long does the battery last on the CoolKiller PolarBear?

The CoolKiller PolarBear is equipped with a 1500mAh rechargeable battery. While the exact battery life can vary based on usage, the efficient design ensures that it lasts through extended periods of use before needing a recharge.

Does the PolarBear number pad have any anti-slip features?

Yes, the PolarBear number pad includes four non-slip designs on its back. These features ensure that the keyboard remains stable and doesn't move around on your desk during use.

What are the key specifications of the CoolKiller PolarBear?

The CoolKiller PolarBear features an 18-key layout with transparent PBT keycaps, full-key hot-swappable sockets, and ice blade linear switches. It measures 8.4cm x 6.5cm x 3cm and weighs 0.296kg, making it compact and portable.

Coolkiller PolarBear Starting at $68.99

Name: Coolkiller PolarBear
Brand: Coolkiller
SKU: coolkiller-polarbear-transparent-calculator-mechanical-keyboard

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Coolkiller PolarBear
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CoolKiller PolarBear 2 in-1 Transparent Calculator & Number Pad Mechanical Keyboard
	Shipping to US	-		$69 Out of stock	Visit Shop

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Location

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In Stock

Price (USD)

Link*

Coolkiller PolarBear

Global

Check vendor

Visit shop

CoolKiller PolarBear 2 in-1 Transparent Calculator & Number Pad Mechanical Keyboard

Shipping to US

$69

Out of stock

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Compare Coolkiller PolarBear vs Lofree Lipstick Numpad vs Keychron K0 Max Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!

Model	Coolkiller PolarBear	Lofree Lipstick Numpad	Keychron K0 Max
	63	62	90
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)	3.9 stars (16 reviews)
Purchase Options
Main differences	Released in 2023 Supports Wired, Wireless connectivity Equipped with a 1500 mAh battery Weighs about 296 g Sized at 30 x 65 x 84 mm Made with a Plastic case Features PBT keycaps Offers Yes, White RGB lighting	Includes a Yes, LED display Runs at a 4000 Hz polling rate Equipped with a 950 mAh battery Weighs about 440 g Sized at 205 x 134 x 59 mm Made with a Polycarbonate case Features PC keycaps Offers No RGB lighting	Has Linear, Tactile, Clicky switch options Features a low-profile design Comes with a knob Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Uses a Plate Mount mounting style Runs at a 1000 Hz polling rate Equipped with a 750 mAh battery Made with a Aluminum, Plastic case Features PBT, POM keycaps Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
Score	Scores Performance: 59.7 Build Quality: 62.2 Productivity: 72.2 Customizability: 56.2 Portability: 87.1	Scores Performance: 67.3 Build Quality: 65 Productivity: 59.6 Customizability: 54.6 Portability: 86.4	Scores Performance: 79.5 Build Quality: 85.2 Productivity: 95.2 Customizability: 92.9 Portability: 86.2
Name	Name Coolkiller PolarBear	Name Lofree Lipstick Numpad	Name Keychron K0 Max
Release year	Release year 2023	Release year 2025	Release year 2025
Switch Options	Switch Options Linear	Switch Options Linear	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size Numpad	Layout Size Numpad
Layout Standard	Layout Standard ANSI	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support LED	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 4000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 1500 mAh	Battery capacity 950 mAh	Battery capacity 750 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount	Mount Style Plate Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight White	Backlight	Backlight Rgb, North-face
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material Polycarbonate	Case Material Aluminum, Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PC	Keycaps Material PBT, POM
Dimensions	Dimensions 30 x 65 x 84 mm	Dimensions 205 x 134 x 59 mm	Dimensions -
Weight	Weight 296g	Weight 440g	Weight -

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Product Description

The Coolkiller PolarBear 2 in 1 Calculator Number Pad is a compact mechanical device designed for users who want both a numeric keypad and a standalone mechanical calculator. It suits professionals handling financial or accounting tasks who need a portable, versatile input tool with mechanical keys and customizable switches. Its wired connection and rechargeable battery support desktop and laptop use across multiple operating systems.

Key Features

Dual functionality as a wired mechanical numpad and a standalone calculator, allowing flexible use depending on your setup.
Hot-swappable mechanical switches let you customize typing feel and sound without soldering, supporting 3- or 5-pin MX-style switches.
White LED backlighting with transparent keycaps improves visibility in low light and adds a clear, clean look.
Rechargeable 1500 mAh battery enables cordless calculator use, with automatic sleep mode after inactivity to save power.
Anti-ghosting on all keys enhances input accuracy during fast or complex numeric entry.

Build Quality and Typing Experience

Gasket-mounted design with silicone dampening reduces keypress impact, providing a softer and quieter typing experience compared to typical mechanical pads.
Ice-blade linear switches offer a smooth keystroke with a tactile bump and audible click, which may appeal to users who prefer feedback without heavy resistance.
Transparent PBT keycaps contribute to durability and a distinctive aesthetic but may show wear or shine over time depending on use.

Connectivity and Compatibility

Wired USB connection ensures stable input without latency concerns, suitable for desktop and laptop use.
Compatible with Windows, MacOS, and Linux systems, covering most common computing environments.
Includes a coiled Type-C cable for connection and portability.

Trade-offs

The device is relatively small with only 18 keys, which limits functionality to numeric input and basic calculator operations.
Battery life and recharge duration are unspecified, so actual cordless usage time is unknown.
Exclusively wired for numpad mode, so it cannot function wirelessly when connected to a computer.
Linear switches with audible clicks may not suit users seeking a quiet typing experience.

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