The desperation that follows pulling your phone out of water after an accidental plunge is no fun, and there's no telling whether it will ever work again once it dries out. For those using a smartphone to play music in the kitchen, or near babbling brooks in the great outdoors, Muji's new splash-proof speaker system is a good insurance policy. True to Muji form, the case is extremely simple and functional: the waterproof enclosure has built-in speakers in the back panel, and a front window so one can still use the smartphone's touchscreen. Three AA batteries provide about 30 hours of music amplification. Although an iPhone is pictured, any device with a headphone jack that fits inside the enclosure should work.

Throw one in the dry bag for the next camping trip. The speaker is available in Muji's online store.