Review on MCSaite Wireless Numeric Keypad & Mouse Combo - Single Receiver for Wireless Number Pad Keyboard and Mouse on Laptop/Desktop by John Roby

The mouse has an auto-off feature to save battery power, so it turns itself off after two seconds of inactivity. This would be great, but introduces a lag in mouse movement when you're ready to go again. The keyboard didn't work and only grabbed all 10 keys. I replaced the batteries to make sure it wasn't a charging issue but ended up returning a different brand product.