Walker"s Game Ear Hybrid Elite Micro 4-Channel 8-Band Graphic Equalizer: * 4-Channel, 8-band graphic equalizer * Environmental noise suppression * 4 Listening modes: general, crowds, music, theater and nature * Digital volume control * Noise reduction rating of 22dB when worn with foam plug * Pair of completely in canal ALDs * Wand program * Sound activated compression * Power source number 10A battery * Includes unit, foam tips, tulip tips, sound tubes - 2 of each size small, medium and large - 4 batteries and carrying case