Amazon.com: teenage engineering OP-1 Portable Synthesizer, Sampler, and Controller with Built-In FM Radio and 4-Track Tape Recorder - 10 Year Anniversary : Musical Instruments
Teenage Engineering TX-6 - Equipment - lines
New PC-VP-BP94 OP-570-77022 14.8V 28Wh 1880mAh Original Laptop Battery For NEC LaVie Z LZ750/JS Notebook Replacement Battery - AliExpress