Tribeca Aviator-Style Natural Sound Headphones with In-Line Microphone &ndash; Genuine Maple Wood - For iPhone, iPod Touch, iPad, Samsung Galaxy, all smartphones and tablets Works with iPhone, iPod Touch, iPad, Samsung Galaxy, and all other smartphones and tablets Sound chamber crafted from genuine, natural wood creates an unparalleled acoustic experience Speaker size 40mm with 18Hz-22Hz frequency response; Sensitivity 110+/-3dB at 1kHz, 1mW Output power is 30mW rated with 50mW max One button in-line microphone