I needed a helmet with ear defenders to use with my petrol strimmer, so went for this one. It's not the best safety helmet I've ever used, but for £12.99, what can you really expect?
The mesh face guard is great, protects against all debris. The ear defenders, however, are rather rubbish. They don't have the facility to flip out from the helmet, and must be slid over ears rather than clipped. They also don't fit very well, which kind of defeats the purpose!