About this product • Strap type: Shoulder. • Closure type: Zipper • ✅1 [Waterproof Dry Bag with Built-in Bluetooth Speaker] First in Japan! A waterproof Bluetooth speaker and a waterproof dry bag in one product! A fusion of the outdoors and entertainment! Take your favorite music underwater! It also has an LED light that lights up in time with the music! Transforms the outdoor space into an entertainment space in an instant! It can also be used as a lantern in outdoor scenes such as camping! • ✅2 [High-Quality Waterproof and Dustproof Performance] Made of completely waterproof 500D PVC material, it boasts high waterproof and dustproof performance. It has IP66 waterproof performance. It boasts outstanding durability and airtightness. It's sure to be a hit at the beach, pool, mountain climbing, camping, and ski slopes! It's a bag for outdoor enthusiasts! You can also store wet clothes as they are, so it can also be used as a gym backpack! • ✅3 [3WAY・20L Large Capacity] The Sound PAQ (sound pack) comes with two shoulder straps, so you can use it as a drum-type bag, a shoulder bag, or a backpack, making it a 3WAY specification! You can use it in different situations! Also, the size is a generous 20L! You can store things even when you go out with family or a group! • ✅4 [Also as Disaster Preparedness Goods] The built-in Bluetooth speaker can be charged via USB, of course, but it can also be solar charged! The built-in LED light also has an SOS light function! It will be useful in emergencies and disasters that may occur while enjoying the outdoors. Please use it as an outdoor backpack on a regular basis and as an emergency disaster bag in case of an emergency. • ✅5 [We are confident in the quality] The product comes with a 1-year manufacturer's warranty from the date of purchase. If any problems occur, Japanese staff will respond quickly, so please feel free to contact us. A Japanese company guarantees Japanese quality standards. [Accessories] 2 shoulder straps, Japanese instruction manual, USB charging cable