- This case is exclusively for the iPhone 15 Pro.- Orders will be shipped in the order they are received.- One integrated LED lights up without the use of a battery.- It does not light up under normal conditions; it lights up when strong radio waves are emitted.- Set includes the iPhone case and a Tokyo Circuit Route Map A5 clear file (Green or Black)!
──────────
The FLASH Tokyo Circuit Route Map iPhone Case features one red LED integrated at Tokyo Station that lights up without a battery.The LED lights up by converting the radio waves emitted by the iPhone itself into electricity and boosting the voltage. It does not light up under normal conditions but illuminates when strong radio waves are emitted. Since it reacts to the iPhone's radio waves, it lights up randomly.It is more likely to light up when using data-intensive apps like Google Maps or other map applications, or when the iPhone is searching for location information in elevators or underground malls.
The mechanism for lighting works as follows: an antenna circuit on the back of the board catches the weak radio waves emitted by the iPhone and transfers them to the front of the board. An amplification circuit is built into the front surface, increasing the voltage and current to light the LED.The circuit that lights an LED without a battery was patented in 2020 (Patent No. 6667777).
──────────
A circuit board cannot be created without designing it using PCB CAD.Since PCB CAD is not design software, each line is drawn one by one using a mouse.The design is meticulously crafted with wiring patterns as thin as 0.1mm.Only three colors are used: Gold (gold plating), PCB ink (Overall: Green, Black, or White), and PCB ink (Station markers: White or Black).While maintaining the surface design, the "battery-less LED lighting circuit" is wired across the front and back of the board.
──────────
A 2mm red LED is mounted at Tokyo Station, 2mm resistors are mounted at 7 major stations, 1.6mm resistors are mounted at 29 high-traffic stations, and 1mm electronic components are mounted at 199 other transfer stations. Electronic components are mounted at a total of 236 stations.The map covers as far as "Ofuna Station" in the West area and "Narita Airport" in the East area. A large ship floats in Tokyo Bay. Railway station names are represented by three characters in white silk-screen printing (e.g., TKY for Tokyo).
──────────
After the electronic components are mounted, each unit is individually coated with resin by hand in a clean room (Class 1000) until the surface tension is full to protect the components. Air bubbles on the components and dust on the resin surface are removed manually.Designed and manufactured in Japan, all products are RoHS compliant (lead-free). The circuit board is gold-plated.The product comes in gift box packaging, making it suitable for gifting.
──────────
The material for the iPhone 15 Pro and iPhone 15 Pro Max cases is TPU (Thermoplastic Polyurethane). TPU is a polymer compound that combines rubber-like flexible elasticity with the toughness of hard plastic.The case includes a strap hole.
──────────
**Product Specifications**FLASH Tokyo Circuit Route Map iPhone 15 Pro Case* **Price:** 16,200 yen (including tax)* **Colors:** Green, Black, White* **Size:** 150mm x 75mm x 13.5mm (at camera lens section)* **Weight:** 44g* **Electronic Components Used:** LED (1), Resistors (210), Diodes (12), Capacitors (13)* **MagSafe & Wireless Charging:** Compatible (OK)