Ultraportable Bluetooth speaker with that notoriously bigger sound thats extra-crispy and fully loaded with big bass. Blast it indoors and out. Now with Podcast Mode, specially tuned for crisp, clear vocals.Party For The Planet. Made With Recycled Plastic:Plastic parts in WonderBoom 4 include a minimum of 31% certified post-consumer recycled plastic* by weight. Post-consumer means its made with plastic sourced from end-of-life electronics. So its literally the life of the party.*Excluding packagingSurprisingly Bigger 360 Sound:Get that big, bassy stereo soundall from one little speaker. Tap the Outdoor Boost for audio thats specially tuned for the great outdoors.Hours Of Wonder:Wonderboom 4 bangs longer with 14 hours of playtime. So you can soak up every moment and keep the party going.Beats Dust, Splashes And Floats:The awe-inspiring IP67 rating gives Wonderboom 4 the durability to withstand dust, dirt, and water. Itll even float in water. Take it to the pool, beach, trail, or shower.Double Up For Serious Stereo:All you gotta do is pair up two. Press once to double up. Press again for a full two-channel stereo assaultthats left and right channels blasting from each respective speaker. (Doesnt connect with Wonderboom 1,2, Boom, Megaboom, Or Hyperboom)A Real Road Warrior:Its built to take 5-foot drops*. And with 40 meters of wireless range, youve got freedom to exploreeven when the road gets tough.*Drop-tested from 5 ft / 1.5 m.