Vafru 3in1 HI-FI Bass Wireless Portable Bluetooth Speaker Stereo with Built-in Microphone Handfree Calling (Blue) Super Bass Sond,Best low frequency output. Ultra-portable compact size with long-lasting internal chargeable battery.Super long play time up to 5-7 hours. Bluetooth V3.0 with Hight Sensitivity, Connects wirelessly up to 30 feet away. Perfect Bluetooth speaker for iPhone, iPad, iPod, MacBook, Samsung Galaxy Galaxy Note, Amazon Kindle Fire HD, HTC Droid and all bluetooth enabled equipment Support TF card, you can enjoy music in MP3 format which saved in TF card,by connecting with 3.5mm jack you can also connect it with phone PC and MP3/MP4