Sony - SRS-XE300 X-Series Wireless Portable Bluetooth Speaker (Gray) with Case - White

Hi there, thanks for sending your question! The short answer is yes! You can absolutely connect four of your SRS-XE300 speakers together. We use a feature called Party Connect to make this happen. It syncs the speakers so they all play the same music at the same time. To enable this feature, please follow the instructions in this link: https://www.sony.com/electronics/support/articles/00352200 We really appreciate you thinking of Sony for your purchase! Best regards, Estefany