Polk Swimmer Jr. Bluetooth Waterproof Speaker. Polk BOOM has taken everything you love about the original Swimmer and scaled it down ever-so-slightly with the entry-level Swimmer Jr. Smaller and more budget-friendly, this unique Bluetooth speaker still delivers high-quality audio with plenty of punch and rugged waterproof styling to match. Its the go-to choice for awesome sound from a super-compact, wireless device thats as versatile and durable as you are. The Swimmer Jr. boasts a waterproof hard shell and silicone bumper. So, its shock-resistant against those drops and spills that are part of any great adventure. Its built-in mic is speakerphone-ready for times when youre listening to music but want to take incoming calls and keep communication hands-free. The Swimmer Jr. also features a non-removable flex tail, giving you endless opportunities to loop, twist, grip and set it however you see fit. Its time to access all the sounds you love from your favorite online music services for a portable experience unlike any other. Go aheadget after it! Imported.