Yamaha PSR-E273 Piano With Adaptor.

The PSR-E273 from Yamaha is 61-key portable keyboard with almost 400 sounds, 100 accompaniment styles and 102 songs. Lesson guides and Yamaha's Education Suite (Y.E.S.) provide deep resources for practice and education, and with an optional cable, the musical experience can be broadened by connecting to an iPhone, iPad, or iPod.

Built-in amplifiers and speakers, and an Ultra-Wide Stereo processor deliver great stereo sound, while a headphone output provides for private practice or playing. Basic effects enhance the sounds of the instrument, and a dedicated piano button and a damper pedal input (pedal not included) deliver an authentic piano sound.

Practice at individual levels with the Yamaha Education Suite lesson functions
Playback of the selected song is continuously adjusted to the tempo of the player's performance
Extend and enhance the keyboard experience by connecting to an iPhone, iPad, or iPod (requires optional i-UX1 cable)
Optimize the overall sound with different EQ settings on the instrument
Tailor the overall output for optimal sound in different listening situations
Ultra-Wide Stereo processor creates a stereo image wider than the speakers
Sustain pedal input (pedal not included)
Auxiliary input for connecting external sources
Phrase recording allows simple 1-song recorder (approximately 300 notes) but only records main voice and pedaling
Keyboard 61 keys
Polyphony 32
Synthesis Method AWM Stereo Sampling
Presets 385
GM and XGlite compatible
Accompaniment Styles Preset: 100
Fingering: Multi
Style Control: ACMP on/off, Sync, Start
Custom User Styles: Yes
Music Database: 100
One Touch Setting (OTS): Yes
Songs Preset: 102
Playback Data Format: SMF
Recording Format: file
Effects Types
Reverb
Chorus
Master EQ
Ultra-Wide Stereo
Functions
Panel Sustain (in menu)
Connectors 1 x 1/4" TRS Headphone
1 x 1/4" TS Pedal Input (pedal not included)
1 x Aux Input
Functions Lesson/Guide: Listen and Learn, Timing, Waiting, Chord Dictionary, A-B Repeat 
Lesson/Guide: Yamaha Education Suite (Y.E.S.) 
Metronome: Yes 
Tempo Range: 32 to 280 BPM
Transpose: -12 to 0, 0 to +12 
Tuning: Yes 
PIANO Button: Yes
Amplifier 2.5 W x 2.5 W
Speakers 2 x 4.7" (12 cm)
Display Custom LCD
Power Requirements 12 VDC via external power supply (not included) 
6 x AA batteries (not included) 
8 W power consumption