Features： Brand new and high quality. Pocket design, easy to carry. Easy to use, capture inspiration at any time. Insert a USB flash drive to use the accompaniment. Built-in 700mAh high-capacity battery, can be used continuously for 4 hours. 6.35mm plug can be rotated 270 degrees, easy to use. Product Specification： Power output: 5W Battery Type: Lithium-ion Battery Continuous operating time: 4 hours Color: Black Material: ABS Amplifier size: 3.77x1.29x2inch Amplifier weight: 89 grams / 3.1 ounces Packing list： 1 x Guitar Amplifier 1 x Type-c to USB charging cable 1 x Type-c to USB adapter 1 x User's Manual (English and Chinese) Caution： USB flash drive is not included in the package. The USB flash drive shown in the picture is for illustration only.