This Inflatable Door Wedge is a versatile entry-assistance and gap-creation tool designed to support authorised physical security assessments, access testing, and non-destructive entry scenarios.
Constructed from a durable reinforced bladder with a hand-operated inflation bulb, the wedge can be inserted into tight gaps and gradually inflated to create controlled separation between doors, frames, panels, or vehicle seals. This makes it particularly useful during authorised security testing scenarios where temporary spacing or controlled access is required without causing permanent damage.
Suitable for both vehicle doors and conventional building doors, the inflatable wedge can assist with positioning tools, creating inspection gaps, aligning hardware, or supporting access workflows in professional lock and physical security evaluation scenarios. Its soft-contact design helps reduce the risk of scratching or damaging painted, metal, or plastic surfaces compared to rigid prying tools.
Compact, lightweight, and reusable, this is an essential addition to any professional physical security or field toolkit.
Technical Requirements
• No external power required• Manual hand-pump operation• Suitable for vehicle doors and conventional doors• Designed for controlled gap creation and positioning assistance
Typical Professional Use Cases
• Creating controlled spacing for authorised access workflows• Assisting with positioning of long-reach or inspection tools• Supporting vehicle and door hardware testing• Non-destructive physical security assessments• Alignment and temporary lifting applications
How It Works
The inflatable wedge is inserted into a narrow gap in its deflated state.
Once positioned:
Inflate gradually using the hand pump
The bladder expands to create controlled separation
Perform the required positioning, inspection, or access workflow
Release air using the valve for safe removal
The soft inflatable design allows for more even pressure distribution compared to rigid wedges or pry tools.
Important Usage Notes
• Inflate gradually and avoid excessive force• Do not use as a load-bearing lifting device• Ensure the target surface can tolerate controlled separation• Avoid sharp edges that may puncture the bladder• Use only in authorised and controlled environments
Product Specification Table
Specification
Details
Tool Type
Inflatable wedge
Operation
Manual hand pump
Material
Reinforced flexible bladder
Use Cases
Door spacing, access assistance, positioning
Compatible Environments
Vehicle doors, conventional doors
Reusable
Yes
Power Requirement
None
Form Factor
Compact portable tool
Key Features
• Inflatable wedge for controlled door gap creation• Suitable for vehicle and conventional doors• Soft-contact non-destructive design• Hand-operated inflation system• Lightweight and portable• Reusable and durable construction• Ideal for authorised physical security testing• Assists with positioning and access workflows
Disclaimer
This tool is designed for authorised physical security assessment, maintenance, and access assistance purposes only. Improper or unauthorised use may result in property damage or legal consequences.
Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊
The Credit Card Sized Multi-Tool.
The KIISU V4BR is one of the most exciting portable development platforms available today. Designed as a credit card-sized alternative to the Flipper Zero, KIISU packs an impressive collection of wireless, contactless and hardware interfaces into a form factor small enough to fit inside your wallet.
Whether you're experimenting with RFID, NFC, Sub-GHz, infrared, Bluetooth or custom GPIO hardware, KIISU provides an incredibly capable development platform while remaining compatible with a large ecosystem of Flipper Zero firmware and accessories.
Unlike many hobbyist development boards, KIISU has been engineered to be genuinely portable, making it ideal for engineers, makers, hardware developers and authorised security researchers who want a compact platform they can carry every day.
Flipper Compatibility
KIISU is designed to run firmware derived from or compatible with much of the Flipper Zero ecosystem and supports many existing Flipper applications and GPIO expansion boards. Because firmware projects evolve independently, application compatibility may vary between releases.
Why We Think KIISU is Special
There are plenty of development boards.
There are plenty of wireless tools.
There are very few devices that combine:
Wallet-sized portability
Multiple wireless technologies
Open firmware
GPIO expansion
Excellent community support
Rechargeable operation
Modern USB-C connectivity
into one beautifully engineered platform.
KIISU strikes an excellent balance between capability, portability and price.
Firmware
KIISU ships with its own firmware but also supports firmware and applications derived from the wider Flipper ecosystem.
As firmware is actively developed, we always recommend using the latest official releases for the best experience and newest features. Recent updates have addressed stability, AUX MCU configuration and charging behaviour.
Hardware Features
Sub-GHz
CC1101 Sub-GHz transceiver
External antenna support
Compatible with many Sub-GHz applications
NFC
ST25R3916 NFC reader/emulator
Integrated antenna
Read, emulate and experiment with NFC technologies
RFID
Built-in RFID reader
RFID emulation capabilities
Integrated antenna
Infrared
IR transmitter
IR receiver
Perfect for experimenting with IR protocols and remote control applications.
Bluetooth
Bluetooth Low Energy (BLE)
GPIO Expansion
Pin-compatible GPIO interface supporting many existing Flipper Zero compatible expansion boards.
iButton
Integrated iButton support.
Package Contents
KIISU V4BR Development Board
USB-C connectivity
Quick Start documentation
(Battery and accessories may vary depending on bundle selected.)
Useful Links
Official Website
KIISU Official Website
Documentation
Official Documentation
GitHub
KIISU GitHub Organisation
Main Firmware Repository
Aux MCU Firmware
Firmware
https://momentum-fw.dev/update?branch=kiisu-mntm
Notice
Hackitsune hardware is designed for professional security research, development, and authorised testing purposes only. Users are responsible for ensuring compliance with all applicable laws and regulations in their jurisdiction. Always obtain proper authorisation before interacting with systems, networks, or devices you do not own.
Hackitsune accepts no liability for misuse of this product. Use responsibly. 🦊
Community Reviews
Meet KIISU
KIISU vs Flipper Zero
Flipper Zero Clone?
Hackitsune isn't simply stocking KIISU we're building an ecosystem around it.
Coming Soon from Hackitsune
Custom low-profile GPIO expansion modules designed specifically for the KIISU form factor
While KIISU supports existing Flipper Zero GPIO accessories, the credit card design deserves hardware that is equally compact. Our upcoming expansion boards are being designed specifically for KIISU to minimise overhang while maintaining full compatibility with the GPIO interface.
Examples currently in development include:
ESP32-c5 WiFi module
High capacity power module
External RF antenna mod kit.
Custom Protective Cases
We're also developing a range of: protective cases and every day carry cases designed specifically for KIISU.
