Compact Wireless Remote Control Shutter Release for Professional Nikon Cameras.

16 channels in 2.4GHz frequency.

Maximum range of 320 ft (100 meters).

Fully supports Bulb shooting mode.

Transmitter conveniently uses AAA battery (not included).

Receiver unit is powered by the camera.

The 3rd generation RFN-4s (available since July 2018) features an even smaller receiver unit.

3rd generation receiver unit also features more robust pins and more flexible antenna (compared to the 1st generation).

For Nikon cameras with MC-30 type connection (aka "Nikon 10-pin jack"). Replaces Nikon ML-3.

Compatible with Nikon Z9, Z8, D850, D810, D800E, D800, D700, D500, D300s, D300, D200, D6, D5, D4S, D4, D3S, D3X, D3, D2Xs, D2Hs, D2X, D2H, D1.