Equipped with CASIO's new proprietary AiR Sound Source technology, the PX-5S delivers acoustic piano sounds with unmatched realism and detail. The power of AiR technology is applied to an all new set of authentic vintage electric piano sounds and clavinets that is paired by a powerful new effects engine, giving the PX-5S an arsenal of both acoustic and electric piano sounds.Main FeaturesMIDI IN/OUT 16 multi-timbre received, GM level 1 standardKeyboard 3 sensitivity levels, OffTouch Response Weight 11.1 kg (without optional stand, batteries)Power Supply 2 wayAC Adaptor: 12V 1.5ABatteries: AA-size zinc-carbon batteries or alkaline batteriesBattery Life: Approximately 3 hoursEffectsEffectsReverbChorusString ResonanceDamper ResonanceDelayMaster EqualizerCompressorSound Source Multi-dimensional Morphing AiR Sound Source *1Maximum Polyphony 256(Audio Player occupies 2)Phrase SequencerPhrase1Playback ModeOne-time LoopMemory CapacityOne phrase up to 8 KB (approximately 1,600 notes); 1,000 phrases totaling a maximum of 1 MBOtherOverdubbingSongs10Other FunctionsTranspose1 Octaves (-12 to 0 to + 12 Semitones)Octave Shift3 OctavesTuningA4 = 415.5 - 440.0 - 465.9 HzArpeggios100 Preset, 100 UserScale FunctionTemperaments: 17 presetStretch Tuning8 typesOperation LockYesTerminalsMIDIMidi In, Midi Out/ThruPhonesStereo Standard JackLine Out2 (L/MONO, R)Audio InStereo Mino JackLine IN2 (L/MONO, R)USB Host PortYesUSB Flash Drive PortYesPedal2 (Assignable)Size (W X D X H) 1,322 ‹³ 286 ‹³ 135 mm (not including protruding parts)MIDI 16 multi-timbre received, GM level 1 standard