Huawei's mobile phone red envelope reminds that there is only sound but no screen?

Huawei's mobile phone red envelope reminds that only sound does not play with the screen. According to the public information about the inquiry, Huawei's mobile phone red envelope reminder can set a sound reminder, but it can't bounce off without a screen setting. Huawei Technologies Co., Ltd., founded in 1987, is headquartered in Longgang District, Shenzhen City, Guangdong Province. In 20021year, Huawei's total revenue was 636.8 billion yuan and its net profit reached113.7 billion yuan.