Sound GeneratorPiano SoundSuperNATURAL PianoMax. Polyphony256 voicesTonesTotal Available Tones: 324Tones Accessible from the Front Panel: 15Tones Accessible from the Roland Piano App: 324KeyboardKeyboardPHA-4 Standard Keyboard: with Escapement and Ivory Feel (88 keys)PedalPedalDamper (capable of continuous detection)Soft (capable of continuous detection)SostenutoSpeaker SystemSpeakers12 cm (4-3/4 inches) x 2Rated Power Output8 W x 2HeadphonesHeadphonesEffect: Headphones 3D AmbienceTuning, VoicingTouch SensitivityKey Touch: 5 types, fixed touchMaster Tuning415.3--466.2 Hz (adjustable in increments of 0.1 Hz)EffectsAmbience, BrillianceInternal SongsInternal SongsTotal 377 songsListening: 10 songsEnsemble: 30 songsEntertainment: 20 songsLet's Sing with DO RE MI: 30 songsLesson: 287 songs (Scale, Hanon, Beyer, Burgmuller, Czerny 100)Data PlaybackPlayable SoftwareStandard MIDI Files (Format 0, 1)Audio File (WAV: 44.1 kHz, 16-bit linear format, MP3: 44.1 kHz, 64 kbps - 320 kbps, requires USB Flash Memory)RecorderRecordable SoftwareStandard MIDI Files (Format 0, 1 parts, Approx. 70,000 notes memory)BluetoothBluetoothBluetooth Ver 4.2Profile: A2DP (Audio), GATT (MIDI over Bluetooth Low Energy)CODEC: SBC (Supports SCMS-T content protection)Compatible Android / iOS Apps (Roland)Compatible Android / iOS Apps (Roland)Roland Piano AppConvenient FunctionsConvenient FunctionsMetronome (adjustable Tempo/Beat/Volume)DualTwinPianoTranspose (in semitones)Speaker volume and Headphones volume automatically select functionSpeaker Auto MuteAuto OffCabinetCabinetMusic rest: Fixed angleKeyboard cover: Folding typeOtherConnectorsDC In jackUSB Computer port: USB B typeUSB Memory port: USB A typePhones jack x 2: Stereo miniature phone type, Stereo 1/4-inch phone typePower SupplyAC adaptorPower ConsumptionPower Consumption: 8 W (when using the included AC adaptor)* Approximate power consumption when playing the piano at medium volume: 4 W* Power consumption when sound has not been played after power-on: 3 WAccessoriesOwner's ManualLeaflet "USING THE UNIT SAFELY"AC adaptorPower cordStabilizerOption (sold separately)HeadphonesSize & WeightWidthWith keyboard cover Closed:1,360 mm53-9/16 inchesWith keyboard cover Open:1,360 mm53-9/16 inchesDepthWith keyboard cover Closed:345 mm13-5/8 inchesWith keyboard cover Open:345 mm13-5/8 inchesHeightWith keyboard cover Closed:778 mm30-11/16 inchesWith keyboard cover Open:910 mm35-7/8 inches*Stabilizers mountedWeight34.5kg/76.0 lbs