The M330 Silent Plus (wireless) mouse and the B330 Silent Plus are technically almost identical, but differ in their target group and packaging.

- Target group: The M330 is for private customers ("for me"), the B330 for business customers ("business").
- Packaging: The B330 is often offered as a bulk version, i.e. without individual packaging for business use.
- Technical data: Both mice offer 1000 dpi, wireless connection, ergonomic shape for right-handed users, scroll wheel, battery operation and a weight of 91 g.
- Battery life: According to the manufacturer, the M330 has a battery life of 18 months, the B330 24 months (this may vary depending on the source).
- Design: The design is very similar, small differences may exist in the look or the surface structure, but these are minimal.

Summarised: The differences are mainly in the target group, packaging and sometimes in the battery life, not in the technology or functionality.