How to replace the battery of the wireless exposure hand switch

What matters should be paid attention to when replacing the battery of the wireless exposure hand switch? First of all, the wireless exposure hand switch requires three AAA7 alkaline batteries. You cannot use batteries other than the specified batteries. Using unspecified batteries may cause malfunction or damage.
Steps to replace the battery of the wireless exposure hand switch: 1. Open the battery cover of the wireless exposure hand switch. You need to use a Phillips screwdriver to unscrew the screw; 2. Open the battery cover; 3. Take out the used battery and put it on Three new batteries; 4. Pay attention to the polarity of the electromagnetic group when placing the batteries; 5. Finally, tighten the screws.