Nikon's WR-R10 Wireless Remote Controller Transceiver is a remote control receiver designed to work with the Nikon WR-T10 Wireless Remote Controller transmitter (available separately): together, they control the shutter release on Nikon DSLR cameras wirelessly.
Attach this WR-R10 to a Nikon DSLR and control it using the WR-T10 transmitter. The WR-R10/WR-T10 units use radio frequencies to communicate--you can trigger any number of Nikon DSLR cameras equipped with WR-R10 units, using just one WR-T10 controller.
The WR-R10 is compatible with all current Nikon DSLR cameras. For Nikon DSLR cameras with a 10-pin connector, the WR-A10 adapter (available separately) is required. When the WR-R10 is used along with the WR-A10 WR Adapter to connect to select Nikon digital cameras with a 10-pin connector, one camera can be designated as "master" and control the shutter release of up to 64 WR-R10 transceiver units.
The range from the WR-T10 to any WR-R10 is 66'. The range from WR-R10 (used with the WR-A10 WR adapter on select DSLRs and acting as a master unit) to WR-R10s is 164 feet (50 meters). Live View can be used with select DSLRs released after the D4 camera (D4, D800/D800E, D600, D5200, D7100).
From the WR-T10 to WR-R10s is 66 feet (20 meters)
From WR-R10 (used with the WR-A10 adapter on select D-SLRs, and acting as a master unit) to WR-R10s is 164 feet (50 meters)