Polyend Tracker+ secuenciador
On the whole this device has been working very reliable for me and fulfills the expected function. I understand it may be limited in functionality in comparison to modern daws or groove boxes I am not a professional musician and have no experience with these. Live play / live recording has a lot of quirks due to the mapping from the midi paradigm (one channel with many notes each with their own start time) to the tracker paradigm (one track = one note, not more than one note can start at one grid position). The workflow is more geared towards invididual note entry / step recording whether from pad buttons or external midi controller.
The device has no internal battery and requires external usb power but it will run for many hours on even a small power bank or phone charge. The device requires an inserted microSD card (provided) to store the config data and of course all the samples and user projects. The microSD card is also the only way to transfer or backup data which means you have to take it out often which is a bit fiddly I would have preferred a compact flash card form factor or similar or a second USB port for an USB stick. Note there is no digitial connectivity either via usb or wireless. Given there is also no built-in real time clock the device does not actually know the time at all and all files on the sd card will be dated 1.1.2021.