CHEERLINK&reg; Bluetooth 3.0 NFC Stereo Speaker,3D stereo surround sound,Ultra Bass Booster,Crystal-Clear Sound,Handsfree Portable Speakerphone with Built-in Mic, 6hrs of playtime, s - Enjoy Your Music & Phone Calls in True Stereo -Compatible with iPhone 5S/5C, iPad, Samsung Galaxy S5/S4/Note, Blackberry, Android/Windows phone, Tablet and other Bluetooth Devices (RED) 3D stereo surround sound,Incredible sound quality;Premium Sound with Bass Enhance Technology;Two powerful 40mm Drivers deliver crisp clean sound Connects wirelessly Up to 82 feet; 25 meters (straight-line) Can be paired with NFC enabled devices,works with all Bluetooth-enabled devices: smart phones, tablets and more Rechargeable for up to 6 hours of wireless play in Max volume.Support Bluetooth, AUX IN, and TF Card Modes. Please note:This listing ONLY includes 1 pcs of speakers.To get 3D stereo sound? Please pair with two Bluetooth speakers.Just pick two speakers (4 colors available:Black,Red,Blue and Silver),hold the bluetooth button 5s to get into master and slave pairing (between two Smart Music 1+1 speakers), then connect your mobile phone/tablets/all bluetooth devices and the two speakers, when the connection is successful, then you have one speaker as the left channel and the other as the right channel.please play your music,you will get 3D stereo sound!