1. The buttons are sensitive and durable, with smooth rebound 2. The signal transmission is stable and the remote control range is long 3. The grip is comfortable, the button zones are well-organized, and the operation is clear at a glance 4. Power supply method: 2 x AAA batteries (batteries not included when shipped) 5. For Sony RM-ED047 / RM-ED050 / RM-ED052 / RM-ED053 / RM-ED060 / RM-ED046 / RM-ED044 / RM-ED045 / RM-ED048 / RM-ED049
