... 7mm, Small capacity is 10-70mAh. It can be applied to bluetooth, headphones, electonic credit cards, ... The HGB company use its technology advantages, Can be tailored for clients of varying cell sharpes, such ... card are not loaded with the battery, It must be a special reader to read the information , Moreover , ... (500 microns), which will enable it to be embedded into objects such as smart credet cards ...