Features

- Quiz Mode
- Smart Chord
- 401 high-quality Voices, 143 auto accompaniment Styles
- 112 Songs, easy Song Book (available via web download)
- Lesson function
- Recording function
- AUX IN jack for connecting an external audio source
- Master EQ / Ultra Wide Stereo
- Duo Mode
- Compact and portable design
- Battery operation (AAx6)

More Info From Yamaha:

https://ca.yamaha.com/en/products/musical_instruments/keyboards/portable_keyboards/psr-e273/index.html