The complete guide
Is this an upgrade mic, or a first mic — and how to tell the difference: the the t.bone SC 450 USB
Not every microphone in a catalogue like this is aimed at the same buyer, and it is worth being honest about where the the t.bone SC 450 USB sits: as a first microphone for someone starting from a laptop mic or headset, or as a deliberate upgrade for someone who has already outgrown an entry-level unit.
On the the t.bone SC 450 USB specifically, the t.bone states: USB connection for direct operation on a computer; No additional drivers needed; Phantom power via USB port. At £69.99 it sits in the mid-range tier of this catalogue, and those specific figures (not just the USB connection type) are what should decide whether it fits your setup over another the t.bone model or a different brand at a similar price.
At £69.99, the signals to look for are the connection type and the stated specifications: a straightforward USB connection with a single polar pattern option generally signals a first-mic design built for simplicity, while additional controls — gain dials, headphone monitoring, switchable patterns — signal a mic aimed at someone who already knows what they're listening for.
If you are upgrading from an existing microphone, the honest test is a side-by-side recording of the same few sentences on both, played back on headphones. The difference is usually more audible in background noise rejection and low-end warmth than in raw "loudness", which is the part an upgrade is actually solving for.
If you are buying your first dedicated microphone, don't over-think this decision: the the t.bone SC 450 USB's core specification (see below) is enough to comfortably outperform a laptop or headset mic, and the more advanced upgrade decisions can wait until you know specifically what you'd want to change.