This innovative KR5100 speaker built-in NFC near field communication technology， quickly matched with Bluetooth device with a soft touch， more intelligent and more convenient for life. Near Field Communication (NFC) is a set of standards for smartphones and similar devices to establish radio communication with each other by touching them together or bringing them into proximity， usually no more than a few inches. NFC offers a low-speed connection with extremely simple setup， and can be used to bootstrap more capable wireless connections. Android Beam and iPhone 6 uses NFC to enable Bluetooth on both devices， instantly pair them， and disable Bluetooth automatically on both devices once the desired task has completed. This only works between Android devices version Jelly Bean and above and iPhone 6.

Main Features:
Newly light sensor touch button
Built-in NFC near field communication technology， quickly matched with Bluetooth device with a soft touch， more intelligent and more convenient for life
Supports MP3 format music， with memory function， auto searching and memory stations
USB disk and TF card plug and play， play MP3 format music， with memory function
With FM radio frequency modulation function and can automatically search and memory channel
External high capacity rechargeable 5C battery
3.5 audio output / input， can also be used for computer， MP3 / MP4 / mobile phone， etc.
Long press last / next button to fast forward and rewind the songs
With LED display screen