FSK 2.4GHz 16-Channel Wireless Shutter Release Remote Control for Canon 7D/5D/1D/50D (2xAAA/2xAAA)
Model: RW-221/N3 - Frequency: 2.4GHz - Modulation: FSK - Channel: 16 - Modes: single continuous BULB and delay shooting - Control range: up to 100 meters in open area - Comes with 4 x AAA batteries (2 batteries for transmitter and 2 batteries for receiver) - Compatible with Canon 7D/5D series/1D series/50D/40D/30D/20D/10D - Comes with connection cable and English/Chinese manual