Fashionable rugby design, cool and stylishWith micro SD TF card slot, you can play mp3 / mp4 format files in the TF card.Wireless portable mini Bluetooth stereo speaker system.Saves you from the hassle of tangled wires.This model of speaker supports any mobile device comes with Bluetooth function such as Phone, iPad, Samsung Galaxy/Note/tablet, Laptop, Tablet PC, etc Features:Bluetooth WirelessVolume Control, Integrated MicrophoneBluetooth 10 meters transmissionBuilt-in microphoneTF card slot/ functionFM functionTwo stereo unit speakersReplaceable lithium battery Specification:Loudspeaker Output: 3W*2Frequency Response: 150Hz-20kHzSignal to Nosie: >65dBDistortion: <1%Impedance >600Ω Battery Charging Voltage: 5V /- 0.5VMaterial: ABS plasticPackage content:1x Bluetooth Speaker1x USB charge cable