Solar Necklace / necklace

Solar Necklace is an unique design, which apply solar energy technology into jewelry design.
Solar panels which are carefully laid inside the necklace for absorbing the sun light during the daytime, then turn them into electrical power to store in battery.
Simply by pressing the crystal will trigger the power-on switch, then turn on the LED light which are laid inside of crystal.
You may charge the battery by USB socket during the low energy level.