Vello Wireless ShutterBoss Timer Remote Kit (for Select Nikon DSLRs) - D90 D3100 D5000 D5100 and D7000 cameras. 99 Possible Radio Channels | Up to 250' (80 m) Range Trigger Camera Wirelessly or Wired | Dual-Function (Focus & Trigger) Release Delay Release Function | Multi-Exposure Mode | Interval Control Long Exposure Control | LED Indicators--Pre-Focus & Exposure In The Box: Wireless ShutterBoss Timer Remote (Nikon DC-2 Connection), ShutterBoss Transmitter, ShutterBoss Receiver, 2.5mm Remote Shutter Release Cable for Select Nikon Cameras, CR-2 3v Lithium Battery, 2 x AAA Battery, 2.5mm Remote Shutter Release Cable for Nikon D70s & D80 Cameras, Limited 1-Year Warranty