1, time. Baohua Weijian Headset pi7 was launched in April, 20021,and Baohua Weijian Headset 2 was launched in February, 65438+2022 at different times.

2. color. Baohua Weijian earphone pi7 adopts multi-cylinder combination, which has two color schemes: champagne gold+dark gray (charcoal gray gold) and champagne gold+white (flowing gold white). The second generation of Huawei headphones has three colors: light black, bright moon white and golden war blue, and the two colors are different.