All units come with: Compact hard-shell carry case, #312 battery, cleaning tool, three size Comply Foam Tips N- 50, user’s Manual and ear plug. The Pro Hear II is the entry solution in our digital lineup. It is great for stalking deer and turkey as you can hear your quarry from a greater distance giving you time to prepare your shot. The PRO HEAR II is tuned to your needs for high and low frequency enhancement. This digital behind the ear model has dual channel WDRC compression with bass and treble enhancement. With two channel WDRC with dynamic contrast detection combines excellent sound quality with low distortion and maximum safe amplification. Fits either ear without a special fitting.