Each new model has a wipe clean, high-gloss casing to prevent dirt build up. Four models are available. First up is the SPM7711, a wireless laser mouse with 1600dpi resolution and an impressive one-year battery life (impressive compared to my current wireless mouse anyway). The SPM8713 is similar in specification, but scaled down for laptop users.
Also launched is the SPM4701 wireless mouse with seven months of battery life and one model with a wire – the SPM4700 with 1000dpi. All should arrive in May, prices to be confirmed.