Active single coil acoustic guitar pickup is designed to give a truly authentic, crisp, natural, and perfectly balanced acoustic guitar sound. A completely shielded case and low impedance output make it 100% hum-free. The electronic circuitry is powered by a single 3V cell battery with extremely low power consumption. The SH 141 comes equipped with a stereo endpin connection for permanent installation and a detachable quick mount 12’ (4m) cable for a temporary install.