Hello I bought this helmet for the couple to a Google Nexus tablet, ipod, an ASUS Vivo PC to PC. Works great and well recognized. Sound quality neutral although lack of proper width. more performance than blue tooth wired (but if discharged helmet) I met a difficulty to connect it to an ASUS FHD 10-inch tablet. It not napparaît for coupling while walking with NEXUS 7. unresolved to date. Good value, comfortable, setting easy road. promoting ODR 20% makes me the helmet 40 euros ttc. unbeatable.