function:for mobile phone,hifi headphone,sport,common headphone
support memory card:yes
frequency response range:20-20000hz
lease allow 1-3cm errors to the actual dimension due to manual measurement! Thank you !
Real color may slightly different from pictures due to computer screen's resolution, brightness, contrast etc.
If you have any question, please contact us before leave negative feedback, we will try our best to serve you, thank you for your understanding!