Compact Offline Device to Secure Your Bitcoin Seed Phrase, 59 EUR plus shipping

Secure your Bitcoin seed phrase (12 or 24 words) reliably with this portable offline device.
Your words are stored locally on the device and are only accessible after entering a 6-digit PIN.
No internet connection – providing maximum digital independence and protection from online attacks.

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✅ Key Features
   •   PIN-protected storage of your seed/mnemonic phrase
   •   One-time entry of 12 or 24 words via PC or Mac
   •   Local display of the words only after correct PIN entry
   •   No Wi-Fi, Bluetooth, or internet connectivity
   •   Secure offline backup for wallet recovery in case of device loss or failure

💡 Note: Your seed phrase is required to recover your private key and restore access to your Bitcoin wallet if it is lost.

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⚙️ Technical Specifications
Feature
Specification
MCU
ESP32-PICO-V3-02, Dual-Core 240 MHz
Flash / PSRAM
4 MB SPI Flash, 2 MB external PSRAM
Display
1.14” IPS TFT LCD, 135×240 px, ST7789 driver
Battery
200 mAh LiPo, built-in
Charging IC
IP5306, USB-C charging
Buttons
2 Buttons (A, B) + Reset
Sensors
MPU6886 (Gyro/Accel), SPM1423 (Microphone)
Ports
USB-C, Grove port (I²C/GPIO)
Operating Voltage
5 V (USB), internal 3.3 V
Housing
ABS plastic, magnetic, portable
Dimensions
48.2 × 25.5 × 13.7 mm
Weight 20g

Setup Requirements
   •   PC or Mac with a terminal program (e.g., PuTTY, CoolTerm)
   •   USB-C cable (not included)
   •   No driver required for Windows 10/11, macOS, or Linux

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🔐 Security Advantages
   •   No access via Wi-Fi, Bluetooth, or internet
   •   Seed phrase is never stored on your computer
   •   Fully autonomous operation with internal battery
   •   Ideal for offline cold storage and quick recovery in case of wallet loss