Are the accessories interchangeable with that of YI Action camera/4K/4K+？
a. Except waterproof case and battery, other accessories are compatible with YI Action camera 2K;
b. All are compatible with 4K/4K+
a. Except waterproof case and battery, other accessories are compatible with YI Action camera 2K;
b. All are compatible with 4K/4K+