Wireless Speaker, Megadream Crystal Stereo Bass Resonator Speaker with 2000mAh Rechargeable Battery, Mic, FM Radio, 3.5mm, USB, TF Card Function Mode for Phones Tablet Laptop PC Computer Notebook Premium Sound with Bass Enhance Technology with self boosting amplier IC. Powerful 52mm diameter speakers and Enhanced Bass Resonator deliver crisp clean sound with deep bass Powerful Sound: 2X 3.5W speakers plus 5W subwoofer Mode: BT / Microphone / FM radio / 3.5 mm Line in / USB/ TF Card Built-in 2000mA 18650 rechargeable battery for up to 8 hours of playtime Built-in microphone for hands-free speaker phone calling, support phone call back. Support Samsung Galaxy S9 S8 S7 Note 9 8 A9 C9, HTC One, LG, Sony Xperia, Moto, Google, Nokia Lumia, Huawei, Xiao MI and Android Tablet PC etc. iPhone XS XR X 8 8Plus 7 7Plus 6S 6 5S, iPad Air 2, iPad Mini 4, iPad Pro, Apple TV, iPod Touch 5