Portable bluetooth speakers, with 3 Year Warranty, Built in Hands Free Microphone and Rechargable Battery Support Tf Function Works for Iphone, Ipad Mini, Ipad 4/3/2, Nexus, Samsung Red Color KCRTEK Portable Bluetooth speakers 120 days no reason to return ,money back 100%.our fan-favorite 18-month warranty and friendly customer service. The aviation grade aluminum material,sanding BY CNC machining, the envy at first looks like a artwork.Whether you're on the go or relaxing at home, the convenience of these great Mini Bluetooth speakerss will bring satisfaction to your ears that can be used anywhere and anytime with any Bluetooth enabled device Kcrtek Wireless Bluetooth Speakers Build in Mp3 player included, it could automatically play the music with a stand alone Micro SD card. (Micro SD not included in the package) Built-in Li-Ion Rechargeable Battery-Built-in microphone for hands-free speaker phone calling Easy to pair (Charger head not included in the package) Getting a call while listening to the music,The Wireless Mini bluetooth speakers with hands free function ,Build in microphone on the speakers.