MX0188W Features Suitable for iPhone 5S/5/6 and other cellphones within 4.7 inch Can effectively enlarges music from your device Made of soft silicone， no scratches to your device No external power needed for the speaker Firmly holds your device vertically and horizontally which allows you to enjoy hands-free videos anytime and anywhere， very easy to use General Specs Material Silicone Compatibility iPhone 5S/5/6 and other cellphones within 4.7 inch Package Details Weight: 73.83 g Size: 12.3*5*4 cm