... 2.Output:2x2.5w 3.Frequency response:90hz-20khz silicone phone speaker 1.Finish:logo can be multicolor embossed ... Etc Standard international colors are available;2.Features:high-tech Silicone Loudspeaker Designed specially for the iPhone , Keep your iPhone in ... soft feeling, durable and tensile of its physical characteristic,100% silicone heat-resisting cold-resisting.4.Quality:ISO,SGS,ROHS,REACH ...