Here is additional information on the Pigzbe hardware from their whitepaper: https://pigzbe.com/pdf/pigzbe_whitepaper.pdf

"The Pigzbe wallet PCB features Espressif’s ESP32-D2WD, a highly integrated WiFi & 
Bluetooth system-on-chip with a dual-core processor and advanced security 
features.

At scheduled intervals, the wallet will connect to authorised WiFi networks and poll the 
Pigzbe server for notifications, ensuring fully independent operation without a mobile 
device present. All connections to the notification server are secured using HTTPS.   
System configuration (including the authorisation of new WiFi networks) may be 
carried out over Bluetooth from the Pigzbe mobile application. The hardware takes 
advantage of LE Secure Connections (introduced in Bluetooth 4.2) to ensure an 
authenticated and secure connection between the Pigzbe wallet and the mobile 
device, using the LED matrix to support the Numeric Comparison association model.  
Two buttons and a 6-axis motion sensor enable interaction with the wallet, while a 
miniature speaker, vibration motor and a matrix of 192 LEDs provide engaging and 
varied feedback. Ultra low power sleep modes conserve battery life while the device 
is not in use.

The Pigzbe wallet is built to meet the needs of users across all age groups. The speed 
of the processor allows us to create fluid and engaging animations and audio for 
younger children.

When configured as a cold storage wallet for adults, the cryptographic hardware 
acceleration offered by the ESP32 allows us to provide industry-leading security 
features necessary to safely store and transfer coins.

In all modes of use, the contents of the flash memory are encrypted using AES-256. 
All application code must also be signed by the Pigzbe remote server, ensuring that 
only trusted software can run on the device. This feature enables us to offer remote 
firmware upgrades without compromising the security of the device.

Each component used in the Pigzbe wallet has been selected to ensure reliable, 
long-term operation, from the LEDs down to the supporting passive components. 
Each electronic prototype is assembled here in London by our experienced design 
team, allowing us to rapidly iterate and test new designs before committing to mass 
production."

In general, the Pigzbe project is the original product calculated on the mass user (the number of the children suitable under target audience is estimated by the company in more than several millions today) I can't wait for Pigzbe game and pink remote controller.

What is the minimum amount needed to invest in order to join the sale?