• Ultrasonic vibrations significantly reduce or completely eliminate sticking, giving you clean, aesthetic slices every time.
• Easily cuts through tougher cake components (like crusts, nuts, or chocolate layers) with minimal resistance.
• Clean slicing means less fluid loss – preserving moisture, structure, and flavor.
• Perfect for layered cakes – no sliding, smudging, or compression of tiers.
• Ideal for crumbly or delicate cakes that would otherwise fall apart with standard knives.

Maximize your work efficiency and minimize your effort! 

Replaceable blades:

The knife is designed with replaceable blades. Whether the original blade becomes damaged or you simply want a different type of blade, swapping is easy and convenient.

Replaceable battery: 

Thanks to our snap-in battery system, you can quickly remove and replace the battery whenever needed – no tools, no hassle.

369Sonic app:

The knife is equipped with a Bluetooth module and it communicates with a smartphone via the app. You can see the following data in the app: 

• - The current frequency of your knife
• - The current battery voltage
• - The current temperature inside the knife
• - The current knife performance
• - It is also possible to change the frequency and increase the performance manually. 

Technical data

• Frequency: 25 - 60 kHz (the frequency is set depending on the type of blade used)
• Power: 70 W 
• Weight of knife: 333 g
• Type designation:  UKK45000F30W
• Certification:  CE
• Charging Adapter: input: AC 100~240 V, 50/60 Hz, output 19V, 1.5 A max

Why buy 369Sonic Ultrasonic Cake knife?

• Cordless Design - Fully wireless – everything is integrated into the handle. No cables, no limits, total freedom of movement.
• Interchangeable Blades - Supports a wide range of interchangeable blades, with new types continuously being developed.
• Replaceable Battery - When the battery reaches the end of its life, it can be easily replaced without the need for servicing or throwing the device away.
• High-Quality Materials - Made from premium, proven materials to ensure long-term durability – including titanium for the ultrasonic transducer and high-grade stainless steel for the blades.
• Optimized Ergonomics - Well-balanced and ergonomically designed to fit comfortably in the hand, allowing for easy and efficient work.
• Unique Design - Combines modern ultrasonic technology with a design inspired by the traditional Japanese katana – a symbol of precision and sharpness.
• Performance-Oriented - Despite its compact and cordless design, the knife delivers up to 70 W of power, enabling it to cut through a wide variety of foods.
• Smart App Control - Bluetooth connectivity allows users to monitor device status, adjust settings, and customize functionality through a mobile app.
• Safety Features - Equipped with blade guards and multiple safety locks to ensure safe and comfortable use. 
• Sensor-Equipped - Includes smart sensors that protect against overloads, tipping, and adjust resonant frequency for maximum cutting efficiency. 
• Processor-Controlled Technology - An integrated processor dynamically controls the transducer and continuously adjusts frequency for optimal performance.

What’s included in this package:

• 369Sonic 70 W Ultrasonic Cake Knife
• 19V power adapter