If you're looking for a call that rings like a bell, you're gonna have to look elsewhere. But if you want the ultimate in realism with everything from top to bottom end, look no further than Zink's PH-1 Polycarb. This single reed puts the power in your hands to do it all. Get calling and watch the mallards start falling.
 
Additional Information
Same calling abilities and design as the original PH-1
Great introductory option
Polycarbonate call