SANWA SUPPLY Solar Charging Bluetooth Keyboard SKB-BTEC1BK

We offer a wide variety of products, and the following precautions apply to some of them. Please note that they are listed for all products. 【Voltage Compatibility】Designed for Japanese voltage (90-110V). Using with a different voltage may cause malfunction. 【Plug Type】Japanese plugs (A or B type). Use a conversion adapter if needed. 【Transformers & Adapters】Transformers adjust voltage; adapters only change plug shape. Using an adapter without a transformer may damage the product. 【Liability】We are not responsible for damages caused by improper use, such as using the product without a transformer. This is a Bluetooth keyboard equipped with a solar panel. It can be charged even with indoor lighting, so there is no need to replace or charge batteries. *Brightness of 200lux or more is required for charging. Electric double layer capacitors (supercapacitors) are used to store electricity. They are resistant to repeated charging and have a longer lifespan than lithium-ion batteries. It has a built-in spare button battery that works even in dark environments when the solar panel does not receive enough light. The design automatically switches the power supply when solar charging is complete. Made from 80% recycled plastic, which is environmentally friendly. *Recycled plastic is used as the material for the keyboard housing. Keycaps and other parts are not recycled plastic.