Yongnuo RF-603 N1 2.4GHz Wireless Flash Trigger/Wireless Shutter Release Transceiver Kit for Nikon D1/D2/D3/D200/D300/D700
Through the transceiver based system each item can be used flexibly as trigger or receiver.
Only 2 AAA batteries are required as power source for each item.
The 2.4GHz wireless frequency is suitable in most countries and guarantees high speed,distance and stability.