The main components of the oxygen inhaler circuit are composed of PIC16C57, 78L05, ULN2003A and other components. Oxygen inhaler circuit composed of PIC16C57 (click to enlarge):
Earmuff Headphones are designed for people in the winter. It combines the functions of earmuffs and headphones, allowing people to enjoy music and answer calls without worrying about the cold winter. It frees our hands and protects our ears and is a must-have for the winter.
Earmuff headphones can be customized with different shapes and different colors. They can be cute, simple and cool. They are suitable for children, students, staff and the elderly.
Earmuff headphones have high-quality sound, super bass, medium-tone, high-pitched sound.
With plush headphones, people don't have to worry about cold winter. Earmuff headphones are both beautiful and practical.
Earmuff Headphones
Earmuff Headphones,Eye Mask Headphone,Wireless Earmuff Headphones,Bluetooth Earmuff Headphones
Shenzhen Linx Technology Co., Ltd. , https://www.linxheadphone.com