The HiFi is a great acoustic pickup from LR Baggs. The pickup is non-invasive, which means that it can be installed without drilling holes in your guitar. However, this isn’t always the case, because if the endpin hole is smaller than ½” it needs to be drilled wider. Although the installation can be quite simple, LR Baggs recommends you to get the help of a professional as you can accidentally damage your guitar or the pickup. The system has four parts: the pickups you can stick to the inside of the bridge, the battery pack you can stick to the inside of the neck block, the volume and tone controls you can stick beneath the sound hole, and the output you can instal in the endpin hole. Furthermore, the system comes with wire clips so you can clip the wires aside properly. The system is very popular not only for how simple it is, but also because it produces a beautiful authentic amplified sound.