Two built-in full range bookshelf style speakers are each rated for 15W for bass and 5W for tweeter Twenty hours of battery life is durable enough to last for an entire day at the beach, home, or overnight camping True wireless speaker can pair with its twin via Bluetooth and produce rich stereo audio USB-C port with the included USB-C charging cable lets you juice up the battery in no time Bamboo and REGRIND Silicone with REWIND Fabric construction echoes Marley's message of skill and sustainability Can be used separately or paired with the Stir It Up Wireless bundle (sold separately) Optional accessories (sold separately) 3.5mm male-to-male stereo audio cable (if you want to connect to a non-Bluetooth device) Required accessories (sold separately) Speaker wire (make sure to measure the room so you'll know how much wire to get)