BTL SE-6689 Professional Portable Belt Type Amplifier with Mic and USB   Professional Belt Type Teaching Amplifier FM Radio, USB, SD Card connector Color Available : Black, Gray, Peach, Pink Output power: 15W 1 Headset mic, 1 remote control, 1 power plug, 1 belt cable Speaker unit: 3″ Rechargeable lithium battery Portable Amplifier with Mic and USB