Finally I note that mouse 4/5.
Most:
~ The attractive design,
~ Very discreet Mouse,
~ Nice click of the noise (it sounds weird but it's true !!)
~ No wire on the mouse,
~ No battery change or recharge,
~ Ability to pause the mouse by leaving the carpet (more red light)
~ Wire retractable belt (3 positions: short (5 to 10 cm) long (about 80cm) and in between).
Cons:
~ Mouse small for large hands (she holds two fingers)
~ The carpet yarn is really too short,
~ The mouse does not work remotely.