Foto&Tech 2 PCS IR Wireless Shutter Release Remote Control Compatible with PENTAX Q, PENTAX DSLR 645Z,645D,K-5 II,K-5 II s,K-1,K-3 II,K-3,K-50,K-30,K-S2,K-S1,Q-S1,K-500,X-5,K-m,K-5,K-7 with Velvet Bag It is powered by a CR-2025 3v battery (included). Eliminates vibrations caused by physically pressing the shutter release. Wireless Shutter Release -Trigger the cameras shutter release remotely from a distance Pentax compatible. 1 Year Replacement Warranty by Foto&Tech. Operating range- up to 32 ft.