Depends on model: AA battery mice (e.g., SM012) last up to 24 months; rechargeable models (e.g., MOU-302) last 2‑4 weeks per charge and charge via USB‑C.
Yes, the 52‑58° angle promotes a natural handshake position, reducing wrist strain and fatigue during long hours. Many users report relief within 1‑2 weeks.
No. Our optical sensors work on most surfaces including desks, fabric, and even glass (for some models). However, a pad may improve tracking on very glossy surfaces.