Perfect Portable Wireless Bluetooth Speaker

Compatible with all smart Bluetooth devices: iPhone phones, Android Phones, Smartphones, Tablets, ipad, Computers, Laptops, Mac Book, Echo Dot, Kindle, MP3 Players, PSP, TV, and more. The phone can display the remaining power of the speaker; the speaker automatically reconnects to the last device used in just 3 seconds. Built-in 1200mah High performance Li-battery ,Enjoy 12-15 hours of music at 50% volume, if you play it 1-2 hours every day at mid volume, it no need to charge in 2-3 weeks Nice!