Specification:

•  
• 100% compatible with SONY alpha A230 A330 A500 A550 DSLR infrared remote control
• This Sony DSLR-A700 Remote Control powered by one CR2025 button cell
• Operating temperature: 5°C to 40°C (40°F to 105°F)
• Typical battery life: up to 3 years, 20,000 exposures
• Operation distance of the Sony Camera Controller: 1cm to 18 meters.
• Size: 5.6 x 3.4 x 0.7cm
• Weight: 28g

Identifying the buttons of the SONY alpha A230 A330 A500 A550 DSLR Remote Control:

• 2 SEC button (shutter release in 2 seconds)
• Shutter button (shutter is released right away)

Package contents:

• 1 x Controller
• 1 x bag
• 1 x manual