Wireless Shutter Remotes Switch JJC JM-C for CANON RS-60E3 PENTAX CS-205 Wireless Replacement for: CANON RS-60E3/PENTAX CS-205/SAMSUNG SR9NX01 Functions: Instant, 3 sec delay, wireless long exposure Range: Up to 30 meters (100 ft) Channels: 16 Battery Type: 1x CR-2 lithium battery.