Description: Output Watt: 3WFrequency Range: 25Hz~20KHzSensitivity: 600mV50mVImpedance: 4SNR : =70dBMP3 Distortion: 0. 3%Battery: Li Batt 3.7V / 1500mAHRecharging Voltage: USB / DC 5VDimensions: (3.86 x 5.47 x 1.81) / (9.8 x 13.9 x 4.6)cm (L x W x H) Weight: 12.73oz / 361gPackage Dimensions: (6.34 x 5.08 x 2.05) / (16.1 x 12.9 x 5.2)cm (L x W x H) Features: Clean and overdrive tone settingsBass treble controlsLighted power switchesWell-equipped to deliver plenty of powerNormal volume, gain and drive switchOverall dimensionsWith volume control and tone control knobs designEasy to use and play Note:This product can work with TF card function,but without the TF card.Need to order separately. Please read the instruction carefully before using the product. Manual Click here Package Includes: 1 x Guitar Amplifier1 x USB Data Line1 x User Manual