Its compact size of 930 mm x 256 mm x 73 mm is 30% smaller in volume than the CT-K1500 and CT-K1550 models, and it boasts roughly 16 hours of alkaline battery life.

• A Beginner’s Slim & Stylish Keyboard with 61 Piano Style Keys for those who’re looking to learn a musical instrument
• Incredibly easy & intuitive interface offering an organized layout & fewer buttons
• Equipped with 122 Tones & 61 Rhythms, the CT-S100 is an extremely versatile instrument with 11 Indian Tones & 12 Indian Rhythms
• Register your favourite settings to easily recall tones and rhythms with the “My Setup” button
• The built-in 2W+2W speakers gives an ample amount of sound output for practicing
• The class- compliant MIDI port (USB to Host: Micro-b) connects to any Mac/PC/iOS/Android device with no drivers needed.
• CT-S 100 comes with a free adaptor (LAD-6) & can also be operated using batteries

Specifications:

Keyboard: 61 standard size keys
Maximum Polyphony: 32
Tones: Built-in tones: 122
Digital Effects: Reverb: 1 to 4, off
Metronome: 

• Beats per measure: 0 to 16
• Tempo range: 20 to 255

Song Bank: 

• Built-in songs: 60
• Part off function: left-hand, right-hand, both-hand

Auto Accompaniment: Built-in rhythms: 61
Other Functions: 

• Transpose: ±1 octaves (-12 to +12 semitones)
• Tuning: A4 = 415.5 to 465.9 Hz (Initial default: 440.0 Hz)
• Sustain (key select)
• My Setup: 1

Input / Output Terminals: 

• PHONES/OUTPUT jack: Stereo mini jack (3.5mm)
• USB port: micro B