Bluetooth Speakers NFC Hand-free Call CSR 4.0 Portable Wireless Sound Quality Speaker Music Angel&reg; Mini USB Charger Tf Card Connect with Bluetooth Devices up to 10 Hours Playtime Best Adapter Automatic connection make it available to mobile phones which with NFC function Neoteric Micro vibration touch, clear treble, pure bass Equipped with CSR 4.0 wireless Bluetooth, power-conserving, low power consumption With TF card function, to download any music you like via connect with computer 2200mAh Li-ion battery can be played for more than 12 hours