Touch Screen Button 3D Surround LCD NFC Bluetooth V3.0 Portable Speakers Subwoofer FM radio Support Hands-free TF USB Drive(Red) Product breakthrough traditional sense of the slow and prone to failure situations, so as to achieve the ideal state. It is light and the body's own electrostatic induction generated by internal guide, which is not affected by external big cold or hot environments With bass diaphragm,3D surround sound IC using the general sound into stunning three-dimensional sound, puts you among the different levels of music, immersive, high fidelity sound, the sound does not break Working time: 6 hours with 80% volume.built-in rechargeable lithium ion battery (3.7V 400mAh) keyless Touch Button Speaker, NFC BluetoothV 3.0 Wireless connection. Wireless range: 33 feet.Micro-USB port for battery recharge