Features:
Life: about 5 years or 50，000 times
Net weight: about 20 grams (including battery)
Working distance: unobstructed front range of about 5 meters
Release mode: Focus， shoot and B gate (on camera settings)
Long durable: a controllable number of up to about 50，000 times， by no means comparable to similar products;
Quality assurance: After several rigorous testing