The Kinivo ZX100 Mini speaker with rechargeable battery is engineered to deliver a superior full-bodied, 360-degree sound. The compact, portable speaker is the best pocket size sound-box to enjoy your tunes anytime, anywhere. KEY FEATURES- Modular design with maximum sound output: Simply connect multiple units together to multiply the sound-boom - Rechargeable Battery-Powered: Enjoy music with its long lasting battery life up to 6 hours- Portability: Compact design with built in audio cable provides maximum portability & convenient storage- Charging + audio cable: Connect any music device to the speaker using the built in cable or the longer charging cable OPERATING INSTRUCTIONS 1. Power On: Press and Hold the colored strip under the Power button for 5 seconds till you see the blue LED 2. Play Music: Connect the 3.5 mm connector on the bottom of the speaker to your MP3/music device and start playing music 3. Volume: ZX100 starts at 50% volume. Press and Hold the red strip under the Volume + button on the speaker to increase volume DEVICE COMPATIBILITY- All iPhones, iPods, iPads- All MP3 players, CD players, Laptops, Tablets and Other Music Devices with a 3.5mm audio socket- Android smartphones - HTC, All Droids, Samsung- Blackberry smartphones - Windows Phones WHAT'S IN THE BOX- Kinivo ZX100 speaker- Longer audio + USB charging cord - Carrying pouch- User manual WARRANTYZX100 is backed by our 1 year warranty. Please contact us at support.kinivo.com if you have any questions.