Review on Macally Wireless Bluetooth Mouse Rechargeable - Simplify Your Workspace with a Quiet and Compatible Apple Mouse for Laptop, Desktop PC, Mac, MacBook Pro Air, iPad, iOS, and Android Devices by Derrick Wilson

Three months battery claim made me buy this mouse. It arrived with instructions stating 70 hours of battery life. 70 hours spread over 90 days equals about 45 minutes a day. I googled the average mouse usage per day and found it to be over 4 hours. 4 hours a day means 18 days of battery life, not 90 days. Actually, I would give this mouse five stars. It comes at a bargain price. It works perfectly. I am completely satisfied with that. But I don't like exaggerations and inflated performance requirements. I have other Macally products and they are all top notch. If they are more specific about the battery life, I will change my rating to 5 stars.