The speaker's size and waterproof design make it a great choice for the bedroom, backyard, or beach. The newly updated Flip now offers sound that's bigger and lasts longer. JBL's AI Sound Boost technology analyzes your music in real-time to deliver the best performance possible, and can now output up to 35W of sound. On a full charge, the Flip 7 can last for 14 hours, but Playtime Boost can be activated to squeeze out 2 additional hours if needed. Another new feature is Auracast support, which transmits audio to Auracast-enabled speakers in range without the need for pairing, letting you add additional speakers for the biggest bashes.