NFC Bluetooth 360 Speaker with Bass Reflex - Activated by SparkMarks NFC Bass Reflex Chamber delivers sound with PUNCH. Your music will maintain its deep, rich tones. High-quality, 360 degree sound fills your entire room with the music you love. SparkMarks NFC for quick, one-step Bluetooth pairing/unpairing with your NFC-equipped smartphone. One-touch SparkMarks NFC also turns the device ON. Up to 12 hours of playing time with each full charge. Charge the speaker through the mini-USB port. USB to mini-USB cable included. Touch control pad includes Play/Pause, Volume Up/Down, and Speakerphone mode.