More Details: Specifications: General Specification Brand Name ROCK Model Number RAU0511 Color Gold, Grey Material Aluminum alloy, Nylon, silicon. Wearing Type In-ear Technical Parameters Conectivity Interface 3.5mm Rated Input Power 3mW Max. Input Power 5mW Driver Unit 9mm NdFeB speaker Speaker Sensitivity 93±3dB Microphone Sensitivity -42±3dB@1kHz, 3V 0dB=1V\/pa Speaker Frequency Response 20-20kHz Wired Control Yes Microphone Yes Package Included: 1 X Rock Headphone 2 X Pairs Earbuds 1 X Manual