Sunday, April 27, 2014

Đo nhịp tim bằng iPhone, không cần phụ kiện

Instant Heart Rate,
One of the best health and fitness apps of 2011!
Easily measure your heart rate by placing your finger over the camera lens

Wednesday, April 23, 2014

how to add notes in Gmail

Hướng dẫn cách thêm note trên gmail

http://www.wikihow.com/Add-Notes-in-Gmail