Redpepper Bluetooth 4.0 Portable Speaker, IPX5 Waterproof Stereo Speaker, in Car Mini Subwoofer for Shower and Outdoor Activities, with Exceptional Resistance to the Splash, Dust, Dirt and Shock from Dorpping - Yellow Made from zinc-alloy and rubberised aluminium, tough enouth to survive from dorp testing up to 2 meters. Exceptional powerful sound, playing high definition and super bass music without distortion. Redpepper speaker is splash-proof, dust-proof and shockproof, suitable for Hiking, Camping, Cycling. Latest Bluetooth 4.0 technology, pairing in 3 seconds within range of 10 meters. And it can be also used as a mp3 player when supported by micro SD memory(32GB MAX). 1000mAH rechargeable battery provides up to 12 hours of playtime.