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 Will Not Charge Or Won't Hold a Charge - iFixit
JBL Flip 4 Portable Bluetooth Wireless Speaker - Official JaYoe website
JBL Charge 4 vs JBL Flip 5: which is better? | What Hi-Fi?
JBL announces Flip 4, Playlist, Soundgear and Pulse 3 speakers at CES - Soundphile Review