Casio SA-81: Play Without a Computer, but Bring the Power

October 26, 2026

Casio SA-81 shown in black and white. Batteries and the AC adapter are sold separately.

The SA-81 supplies its own tones and speakers, unlike a MIDI controller. Here is what its mini keys, onboard controls and separately sold power options mean.

View on Amazon

The Casio SA-81 makes its own sound through built-in speakers: you do not need a laptop, music software or an external sound module to hear it. You do need a power source. Six AA batteries or the specified Casio AC adapter are sold separately.

That makes it a different purchase from a small MIDI controller. Choose this black-and-white SA-81 for playing its onboard sounds; do not buy it expecting a USB controller for recording software.

The sounds live inside the keyboard

The 44 mini keys play 100 built-in tones. Dedicated Piano, Trumpet and Drums buttons let you jump to those sounds without scrolling through the full list. Two onboard speakers provide the sound output.

SA-81 control panel with Piano, Trumpet, Drums, Sustain and Layer buttons — Piano, Trumpet and Drums have direct-selection buttons. Layer combines two tones; Sustain extends sound after a key is released.

Layer lets you combine two tones on the keys. The Sustain button extends a sound after you release a key; it is an onboard function, not a promise of a sustain pedal or pedal socket.

For playing along, there are 50 rhythm patterns and 10 built-in songs. The melody-off function removes a song's melody so you can play that part yourself. The metronome and adjustable tempo offer a separate way to keep time without a backing song.

Plan the power before the first note

For battery use, supply six AA batteries of a type specified in the manual. For an outlet, Casio lists the AD-E95100L adapter, rated for this keyboard's DC 9.5V input. Neither power option is included. Do not substitute a USB charger or choose an adapter just because its plug appears to fit.

Rear of the SA-81 with numbered headphone output and DC power sockets — The numbered sockets are 1: PHONES/OUTPUT, a stereo mini jack; and 2: DC 9.5V power. The audio jack is not a power input.

The other socket is PHONES/OUTPUT for stereo mini-jack audio. It is separate from the power connection—not a USB port or a pedal input. Headphones are an additional purchase, not a requirement for hearing the built-in speakers.

Mini keys change the playing surface

Hands playing the Casio SA-81 mini keys in a manufacturer scene — The SA-81 has 44 mini keys, not a full-size piano keyboard. This manufacturer scene shows hand placement, not a fit or playing-performance test.

The SA-81 offers 44 physical mini keys. Octave shift moves their pitch up or down; it does not add keys you can reach at once. A piece that needs a wider simultaneous span still has that limitation. Do not expect the layout or feel of a full-size, weighted piano keyboard.

This is the useful trade: a self-contained instrument with accessible sounds and rhythm controls, but a smaller playing surface. It is not simply a miniature version of a full piano, nor does its small size establish a fit for every player's hands.

A child carrying the black-and-white Casio SA-81 in a manufacturer scene — One instrument contains the keys, sounds and speakers. The scene does not establish suitability for every child; furnishings and props are not included.

This guide uses Casio documentation and supplier photographs, not hands-on testing. Check that the listing identifies SA-81 / SA-81H3; this guide does not cover the older SA-76.

View the Casio SA-81 on Amazon