R2 Acoustic Guitar Resonance Pickup with Magnetic Volume

Features: Professional resonance pickup for classic and amp; folk guitar with sound hole diameter of 90mm-105mm, easy installation. With magnetic volume control, mic volume control, and phase switch, users can adjust the guitar sound according to their needs without changing the original tone of guitar. Supports delay control, reverb control(turn right for HALL effect, turn left for the METAL effect), and chorus control, which allows users to make their own guitar sounds freely. Built-in rechargeable lithium battery that can be used 4-6 hours continuously after a full charge, and USB charging cable is included. You can enjoy your performance without any worry.