Merry Concerto Personal Amplifier

Merry is a stylish personal amplifier with earphones that provides up to 40dB amplification of sounds around you. At approximately 1" square, the Merry amplifier fits in the palm of your hand but can be worn around your neck or clipped onto clothing. Control functions with just four buttons: volume up/down, power and listening mode!Watch the video on how the Merry amplifier works. Features: Up to 40dB amplification Buttons for power, volume up/down, listening mode Adaptive noise reduction Feedback cancellation Rechargeable Li-Ion battery Up to 20 hours of use Weight: 0.45 oz Dimensions: 1.4" W x 1.25" H x 0.6" D Earbuds included