B0095PWR4S SMDV RFN-4s Slim Wireless Remote Shutter Cable Release, Transmitter, and Receiver Kit for Nikon Camera for Nikon D800, D800e, D4, D3, D2, D1, D300, D300s, and D200 (Replaces Nikon Cable MC-30)

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2.4GHz Frequency with 16 Selectable Channels
Slim, Unobtrusive Design and Ergonomic Wired/Wireless Remote Control
Receiver is Powered by Camera’s Battery & Transmitter Uses a Single AAA 1.5v Battery
Circuit Designed to Operate in Extreme Temperatures (-20 to +50 C / -4 to +122 F)
Includes a 24 month manufacturer warranty