请为公司撰写一个社交媒体贴文，在推广新产品或促销活动。


公司名称：XYZ公司
新产品名称：PQR手机
促销活动：立即购买可以获得5％的折扣
"Introducing the latest addition to XYZ company's product range - PQR mobile! Now available with an amazing discount of 5% on immediate purchase. Upgrade your mobile experience with PQR and save big today!"