Worked fine for a while but in less the 3 months stopped working . Already not functioning! The ugly is that I found this mice to be too small and not tall enough for even a medium-sized palm. I love my Crocs. Considerando todo en general estan bastante bien. Es el primer par de cross que me compro . I did not try on the heather grey one but tried on the navy blue one and assumed, being the same size, they would fit the same. Conforme o esperado ótima aquisição, melhor caixa Bluetooth. Esta bien diseñado y bien construido. I say this all truthfully.