Riin Ultra Portable Rechargeable Wireless Bluetooth Speaker , Enhanced Bass Resonator, Powerful Sound, support TF Card for MP3 Players, support Smart Phones, Pads, Laptops and Many Other bluetooth Devices (Silver) High quality 45 MM loudspeaker,excellent DBB extensions bring you richer sound when using. Compatible with Bluetooth phones, MP3/MP4/PC/PSP, etc Bluetooth wireless speaker for music playing. Support TF/Micro SD card. Support PC/iPod/iPhone/MP3/MP4/Other mobile phones by connecting with 3.5mm jack