2.4G wireless headphone with microphone 1,invisible mic 2,10m distance 3,Built-in Li- ... ,Compliant with CE and ROHS 2.4G wireless headphone with microphone Features of 2.4G wireless headphone2.4GHz uncompressed sound intact 2-way ... use it listen music,talking etc Packaging of 2.4G wireless headphonePVC box with color card 2.4G wireless headphone with microphone