Opteka RC-3 Wireless Remote Control for Sony Alpha

Wireless camera operation for Sony Alpha A33, A55, NEX-5, A230, A330, A380, A390, A450, A500, A550, A560, A580, A700, A850 & A900
Allows for shutter release up to 16 feet
Instant or 2-second shutter release delay
Makes group photos easy
Battery included, Typical Battery Life - up to 2 years, 10,000 exposures