[Product Information]

Powerful performance - Total 30W drivers and passive radiators provide full-spectrum audio and clarity at any listening level. plus, you’ll hear incomparable bass performance not found in other mobile speakers. and improvements in digital signal processing let you share your music louder than the previous version of our bluetooth speaker.
Battery Upgrade Version - Built-in 5200mAh / 7.4 V (4 x 2600mAh / 3.7V 18650 lithium battery, April 7th updated) rechargeable battery, it can play up to 20 hours at middle-level volume, and when you at home, you can listen indefinitely by keeping the unit while charging the speaker with USB cable.
Simple and Convenient - It has built-in MIC Bluetooth speaker and hands-free function, so you can conveniently pick up a call by this speaker at home or office, anywhere during it is connected to your Smartphone.
Bluetooth 4.0 Speaker Connectivity - Nature Audio has a range of about 33 feet, so you can enjoy the sound you want without wires. Voice prompts talk you through pairing with your smartphone, iPad or other Bluetooth device, making it easier than ever. And the speaker remembers the most recent eight devices you've used, so reconnecting is even simpler.
Incredible Customer Service and a Solid Warranty - Our One-Year no hassle warranty is backed by U.S. based customer service providing fast & friendly product support and assistance.