JJC releases 17 Radio Frequency Wireless Shutter 2021-10-08 JM-A(II)JM-B(II)JM-C(II)JM-D(II)JM-F(II)JM-F2(II)JM-I2(II)JM-J(II)JM-K(II)JM-M(II)JM-N(II)JM-O(II)JM-R(II)JM-PK1(II)JM-J2(II)JM-R2(II)JM-I3(II)