Beyerdynamic MCE 5-4 microphone. With Battery or 48v Phantom Power bomb
Original
mercury battery no longer available
Replacement batteries use 5 LR43 /GP186 BUTTON CELL IN PLASTIC TUBE TO MAKE UP BATTERY.
Pack of 10. = £3.00 with plastic tube holder.
Or use 4 MAXELL SR44SW BUTTON CELL IN PLASTIC TUBE TO MAKE UP BATTERY AT £1.20 EA
SEE B7 IN BATTERIES & CHARGERS
Good luck.
Mike