invention
my invention hello,welcome to my blog.thank you for coming I introduce my inventin .this is combinate wireless earphone and speaker (original problem and idea/solution) i think everyone has wished they had a speaker at time like this. but i don`t know anyone bring speaker .because you bring speaker and you feel like burden.compare to speaker , many people carry earphon. my invention help this situation (specifics) perchace it in electric store price : 35000 yen (summary) it is not necessary to have it, but it would be convenient to have it. we can listen to music togeser or alone, and we do not have to buy them separately.