Hello, I am an (amateur) musician, self-employed in a secondary occupation, not subject to VAT. I purchased a new monitor (Bose S1 Pro +, €584) for sound amplification during my performances. However, it can/will undoubtedly also be used privately from time to time as it has Bluetooth. Can I enter this as an ‘investment’ or should I put it in other cost category? Thank you in advance for your input.