It's a bit hot right now, isn't it? In fact, today marks the hottest June day recorded in the UK, with temperatures peaking at over 36 degrees Celsius, which is pretty outrageous. I suspect, then, that many Brits will be heading to their local pool or beach to chill out a bit. But if you want to really enjoy the summery vibes, then I'd strongly recommend grabbing a Bluetooth speaker and blasting some tunes — and luckily, one of my favorite models is on sale for Amazon Prime Day.• Browse the full Amazon Prime Day saleYes, you can snap up the JBL Charge 6 for £109.65 (was £169.99) at Amazon right now, which is an absolutely phenomenal price for what is an equally phenomenal Bluetooth speaker. With amazing sound quality, a rugged build, and top-tier waterproofing, the JBL Charge 6 is the ultimate pool or beachside companion, so scroll on down to learn more about this unmissable offer.Today's best JBL Charge 6 dealThe JBL Charge 6 is a stellar speaker that boasts powerful, full-sounding audio with pounding bass, clear mids, and distinguished highs. It's also drop-proof and highly waterproof, making it the perfect speaker to take on the go.View DealIn our JBL Charge 6 review, we rated the speaker five stars, and raved about its "even-handed and expressive sound," awesome power, and genuinely impressive build quality. And after testing it for myself, I'd agree that it's more than deserving of the high praise.When I got my hands on the Charge 6, I was especially struck by its regimented, precise, and thumping bass, which made genres like House and Hip-Hop sound highly energetic and exciting. But this never got in the way of the rest of the frequency range — vocals and guitars in the mid-range and percussion in the treble also came through with commendable clarity and flair, resulting in a beautifully rounded listen.But JBL's mid-weight speaker doesn't only sound great, it's also rammed with a fantastic feature-set. With customizable EQ, a battery-enhancing PlayTime Boost option, and lossless USB-C audio, this speaker really feels like the full package.And what really helps it to stand out as a beach or poolside is its IP68 dust and waterproof rating. This means that the Charge 6 is fully protected against particle ingress, but it can also survive a 30-minute-long dunking under a meter and a half of water...pretty amazing, right?Ultimately, this deal makes an already great-value Bluetooth speaker feel like a total bargain. And if you're looking to take your music-listening experiences to new heights this summer, then I'd strongly suggest scooping the Charge 6 up for less while you still can. More Prime Day deals in the UKAmazon Prime: get a 30-day free trialAmazon Devices: Fire, Ring & Blink from £13.99Amazon Haul: up to 30% offApple: up to 33% off AirPods & Apple WatchAppliances: up to 45% off Ninja & TefalBeauty: up to 60% off Philips & Oral-BEssentials: household goods from £5Fans: from £20Fashion: up to 50% offGaming: £90 off PlayStation 5Headphones: up to 50% off Beats & SonyLaptops: from £149Tablets: Samsung & Lenovo from £79.99Toys: up to 25% off Lego and ToniesTVs: from £129.99Vacuums: up to 40% off Shark & RoborockWearables: up to 30% off Garmin & Oura