Bluetooth connection: You can press the power button to activate the bluetooth pairing mode and connect your bluetooth mobile phone or other bluetooth-enabled devices. 5 Sound Modes: Choose the following sound mode: loop REV-CHOR-FLAG-OVDR-WAH; the sound effect has a memory function, and it works in the last sound effect mode without constant adjustment. ADJUSTABLE: A push-pull switch adjusts the instrument's output volume, allowing the B6 to be tuned to a variety of active and passive pickups, allowing for a wider range of applications. Universal 3.5mm Output Jack: Our 3m audio cable allows you to easily connect it to your guitar amp or headphones (not included). 180-day warranty: We support this product with a 180-day warranty, please rest assured to order and use, if you have any questions, please feel free to contact us.