UEUH.com

Logitech that set out new wireless MK710 here According to AA batteries for 36 months says you can use without changing batteries. $ 99 a sale expected to be released in Europe this month, will set in America, that is expected in April.
Of course, according to Logitech this time how the use of intensity gave any explanation on this issue yet. But if the waiting period will be 3 years I seem to get a set value.