EARSON 3.5MM Jack Black Waterproof Shockproof Wireless Bluetooth Speaker For ipod iphone4/4s/5 Samsung Galaxy NoteII S3 S4 Smartphone PC A2DP stereo Bluetooth transmission Stable triangle shape structure, exquisite and attactive metal grid Waterproof, Dustproof, Anti-scratch, Shockproof, suitable for both indoor and outdoor exercise Aux in function support all digital audio device with 3.5mm jack, such as iPod/iPhone/ipad,Cell phone,MP3, MP4,Computer, Notebook, PSP 1500mA high capacity built-in battery, playtime lasts for 5 hours at least