Smart dog collar

Tokyo: On Thursday, Japan invented a new technology. The collar of a dog's neck allows a pet owner to remotely monitor his pets with a mobile phone, see how long they sleep, how long they have been active, and

Kunming LED industry gradually picks up

Recently, according to the interim results report of 23 key LED listed companies in China, nearly 60% of LED listed companies' overall sales revenue increased in the first half of the year, further indicating that the warming of the LED industry has become a reality. In this regard, as