oplab user guide in english May 16, 2019 12:40 Updated Click here to find the oplab user guide in english. Related articles oplab module ZM-1, why is it not working? can i purchase a replacement battery from teenage engineering? what are your shipping times, when will i receive my order? OP-Z, how can i use it in a DAW for midi/streaming audio/recording? can i pay with several cards?