The Kinivo ZX120 Mini speaker is designed to provide full-bodied 360 degree audio in all directions. The ZX120 is a compact pocket sized speaker with an expandable bass resonator that provides superb low frequency (bass) output. The ZX120 contains a built-in lithium ion battery, making it an ideal speaker for listening to your music anytime and anywhere. Key Features - New and Improved Design: Uniquely integrated, longer built-in 3.5mm audio cable and expandable resonator for bass enhancement - Modular Speaker Design: Connect multiple ZX120s together to improve your audio experience - Increased Battery Life: Enjoy music with long-lasting battery life up to 10 hours of high volume music playing time - Portability: Compact design with built-in audio cable provides maximum portability and convenient storage Operating Instructions 1. Power On: Press and hold the colored strip under the Power icon for 5 seconds till you see the blue LED 2. Play Music: Connect the 3.5mm connector on the bottom of the speaker to your mp3/music device and start playing music 3. Volume: ZX120 starts at 50% volume. Press and hold the colored strip under the Vol+ icon on the speaker to increase volume Device compatibility - All iPhones, iPods, iPads - All MP3 players, CD players, laptops, notebooks, tablets, smartphones, and other music devices with a 3.5mm audio socket - Android smartphones - HTC, All Droids, Samsung, and more Note: ZX120 is a wired speaker and does not support Bluetooth What"s in the Box Kinivo ZX120 speakerAudio and USB charging cord Carrying Pouch User Manual Warranty Kinivo ZX120 is backed by 1 year warranty.