4PK Premium 3.5mm Male to 3.5mm Female Audio Jack Extender 3.5mm Headset Adapter for iPhone 6S, 6S Plus,5S, SE, Battery Charger Case (Black) Pack of 4 Heavy Duty, High Quality 4-Pole Audio Jack Extender Headphone Adapter with 3.5mm Male to 3.5mm Female Extension Cable for Apple iPhone and Android devices and also for Square Readers, PayPal and other credit card readers. Supports devices with 3.5mm (1/8 inch) headset audio input including iPhone 6S, iPhone 6S Plus, iPhone 6, iPhone 6Plus, iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPad Air/Mini, Samsung Galaxy S6, S5, S4, Note 4, Note 3, Nexus 4, LG, Nokia Lumia, HTC One, Blackberry and most Smartphones and Tablets not mentioned. Provides the interface to connect your 3.5mm earphones / headphones / speakers to the latest smartphones and gadgets with 3.5mm audio input. Each adapter adds additional length to your earphones / headphones delivering excellent sound quality. Ideal to be used with battery charged cases, / power case / juice pack and most MFI-certified battery cases. Features a 4-pole adapters which is widely used today among smartphones, PDAs, portable devices and other gadgets. Designed with gold-plated connectors and contacts for maximum conductivity and corrosion prevention. This 7.5-8 cm audio jack adapter extension cable delivers high quality audio output. Specially designed with slim-front barrel for easy access when used with battery charger cases or juice packs.