$50+ new. Available for $30 including shipping in US.Key features:
Maximum range of 320 feet (100 meters)
16 user selectable channels.
2.4GHz operating frequency.
Transmitter unit conveniently uses readily available AAA battery.
Receiver unit is powered by the camera.
Fully supports Bulb shooting mode.
Works with Nikon D5, D4s, D4, D3x, D3s, D3, D810A, D800E, D800, D700, D500, D300, D300s, D200, D100, D2, D2x, D2Hs, D2H, D1H, D1.
Uses Nikon MC30 connector. (ML-3 replacement)
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