Joyo Digital Rechargeable Guitar Amp DC-15S

AC adapter input voltage: AC100-240V 50-60HzAC adapter output voltage: DC15V/4A Built-in battery: 11.1V/4.4Ah(lithium battery)Guitar input sensitivity: -27.08dBV LINE IN input sensitivity: -2.28dBVRMS: 15W LINE OUT Output Impedance: 1KΩ RECORDING Output Impedance: iOS 1KΩ;  ANDROID 4.7KΩHeadphone Impedance: 32Ω Speaker’ s dimensions:Midrange speaker and woofer 5.25-inch/4Ω/20W; 2.5-inch square 8Ω/15W Bluetooth version: 4.0 LOOPER time: 30s9 Amp models: Acoustic, JC Clean, Clean, Overdrive, Blues, Crunch, Lead, Rhythm, Metal6 Digital effects: Chorus, Flanger, Phaser, Tremolo, Delay, ReverbBuilt-in drum machine: 36 rhythm patterns with tempoControls: Gain, Tone, Volume(for amp), Space Effects, Modulation Effect, Amp select, Amp preset, Bluetooth, Looper, Drum volume, Drum style, Tap tempoPower: 15WGuitar input: 6.35 mm jackAux input: 6.35 mm jackLine / headphone output: 6.35 mm jackWeight: 4.2kgDimension: 25*19*23 cm