Solar Mobile Phone Pendant

Detailed Product Description
The solar cell's main principle is to semiconductor material, and put the thinner model N semiconductor on the thick P semiconductor, when the photon hits the surface of this equipment, the adjoining plane of the model P and model N semiconductor will create the electron scattering to produce the electric current. The current can be stored up in the accumulator. The colorful LEDs will flash and remind you of new coming call. This pendant can help you when the mobile phone is mute. Meanwhile, it can reduce radicalization to human brain. It can be stuck on any position of GSM mobile phone with frequency from 900MHz - 1,800MHz. It is suitable for promotion gifts.