Connecting two jbl Flip 4 for stereo mode - YouTube
JBL Flip 4 (Black) Waterproof portable Bluetooth® speaker at Crutchfield
JBL Flip 4, Black - Waterproof, Portable & Durable Bluetooth Speaker - Up to 12 Hours of Wireless Streaming - Includes Noise-Cancelling Speakerphone, Voice Assistant & JBL Connect+
Jbl Flip 4 Powerful Bluetooth Speaker, Mini Portable, Wireless, Waterproof Bt Speaker With Bass And Stereo Music Perfect Travel - Speakers - AliExpress