The WR-1 Wireless Remote Controller is part of the Nikon Wireless Remote Control system, which uses radio frequencies to communicate instead of infrared signal which requires direct line of sight, extending the capabilities and reach possible when photographers need the ability to control cameras remotely. The WR-1 Wireless Remote Controller can act as either a transmitter or receiver unit; and is compatible with the WR-T10 transmitters and WR-R10 transceivers. The WR-1 is compatible with the WR-T10 & R10 as long as the WR-1 is set to Group A, as the WR-R10/WR-T10 system is fixed on Group A.
Up to 20 WR-1 units can be used at one time (including 3 transmitters).
The WR-1 also can access up to four groups (A, B, C, D), to further separate out groups of cameras that need to be controlled independently and simultaneously.
Useful for triggering the shutter remotely when using slower shutter speeds (up to 60 minutes) for long exposure photography, to prevent camera movement as well as when shooting interval timer photography.
Range (line of sight) from a WR-1 to another WR-1 is approx. 394 ft.