‎2.36 x 1.57 x 0.67 inches

Hisewen 1100mAh Square-hole plug Replacement Battery for Motorola Baby Monitor MBP33 MBP33S MBP33PU MBP33BU MBP36 MBP36S MBP36PU MBP35 MBP41 MBP43(No fits MBP33S MBP36 MBP36S with Round-hole plug)