Gold-plated 3.5mm connectors provide seamless Hi-Fi stereo audio transmission.
Step-down design allows it to support all your compatible devices via 3.5mm audio port without removing the case.
This 3.5mm stereo cable is compatible with any brand MP3 player, phone, tablet, etc. that has a 3.5mm audio jack (aux port).
iPhone, iPod, iPad, other smartphones, tablets, laptops, MP3 players, Walkman, Discman and all other audio-playing devices with a 3.5mm aux port from brands including Sony, SanDisk, Samsung, HTC, Motorola, Nexus, Nokia, LG, Blackberry and many more.
Beats and other brands of headphone, Hi-Fi stereo sound systems, car stereos, radios, portable Bluetooth speakers, such as Tronsmart Element T6, Mega, Pixie and wireless audio receivers with a 3.5mm aux port.
The gray metal casing is 8.1mm Wide. But notice the gold part above the casing is 5.08mm Width x 2.55mm Depth. If your case is less than 2.55mm thickness and the stereo hole larger than 5.08 mm width, it should be OK. If thicker case than 2.55mm, you would need to have 8.1mm opening for the cable to work fine or you'll need the extension adaptor for a battery case. Hope this helps!