DescriptionAcoustic Guitar Amplfier• 10 Watt (Speakers 2.1-inch 4Ω 5W x2)• 5 preset sounds: Clean / Classic / FSP / DBS / Silent• Delay & Reverb Effects• Built-in Drum Machine with 20 beats• Bluetooth (V5.3) and OTG function for easy live recording• Guitar input, Headphone output, OTG port, Type-C charging port• 2200mAh Li Battery Capacity• Full charge can be used up to 5-6 hours continuously• 3 hours to charge