Stereo headphone output preamp for an immersive music experience - compatible with TRRS in-ear or headphone microphone input. Features a 180-degree rotating plug, designed specifically for electric guitars. Includes rich simulation effects with default noise reduction (cannot be turned off), allowing tone adjustment to suit your preferences. BT connectivity enables accompaniment playback for quiet, convenient practice. Large-capacity battery provides up to 5 hours of continuous use. Built-in BT mode activates upon power-on, with indicator lights showing pairing status. If no device pairs, BT mode turns off automatically to prevent accidental connections. Color: Black Material: ABS Package includes: 1 �� Guitar Headphone Amplifier 1 �� Type C Cable Note: Slight color variations may occur due to lighting or display differences. Size tolerance: +/- 1-3cm.