The zeptocore is an open-source handheld device for playing with samples which bares more than a slight resemblance to the Teenage Engineering Pocket Operators. It has 16 banks of samples, with each bank capable of holding 16 samples - and can load up to 8GB of samples via an SD Card. You'll find all the details on their website: https://zeptocore.com/
Specs:
- stereo playback of 16-bit audio files @ 44.1 kHz sampling rate
- sd-card storage for up to 8 gigabytes of samples
- recalls up to 256 audio files (16 banks of 16 tracks)
- 16 different effects (saturate, fuzz, delay, reverb, etc...)
- single-cycle wavetable synthesizer
- realtime sequencer with optional quantization
- clock sync in (or midi sync with ittybittymidi)
- optional clock sync out
- tiny built-in speaker
- powered by two AAA batteries or USB-C
And another little video:
More info https://zeptocore.com/
About the author [midierror]: midierror makes nifty Max For Live devices, innovative music hardware, award winning sample packs and hosts a podcast speaking to people in the music world.