L.R Baggs IBEAM Bridge Transducer Passive System Acoustic Guitar With Strapjack (Steel String)Gives you clearer sound wherever you perform. The L. R. Baggs LR IBEAM is a IBeam Passive System Steel String Acoustic Guitar High Fidelity Bridge Plate Transducer with Strapjack Features Quick and easy installation Includes iBeam placement jig (pin bridge guitars only) Peel and stick Natural string to string balance and dynamics Fits most X Braced guitars