1. New Bluetooth v3.0 Technology allows you to connect wirelessly up to 33 feet away. Seamlessly stream and share music movies games phone and conference calls anywhere. 2. Built-in Li-polymer Rechargeable Battery for up to 7 hours of playtime (medium volume). 3. Built-in microphone for hands-free speaker phone calling. 4. 3.5mm Audio Line In allows you to connect the speaker directly to a standard headphone jack. 5. Support TF card (Micro SD) up to 64GB. 6. The perfect Bluetooth speaker Works with all Bluetooth-enabled devices: iPhone iPad iPod MacBook Samsung Galaxy s4 and s3 Galaxy Note Amazon Kindle Fire HD HTC Droid and One S Nexus 7 Nexus 4 and all tablets Smart Phones and PCs etc. 7. Comes with smart voice function. 8. Includes USB charging cable 3.5mm audio cable.