The a-JAYS Five for iOS set a new standard for earphones. Made for iPhone, iPad, and iPod with a full-feature three-button remote attached to a flat tangle-free cable, you can answer/end calls, play/pause/skip songs, and adjust volume levels/voice control. The soft and flexible yet durable one-piece body is designed to follow the complex geometry of the ear, pairing great acoustic properties with a compact form factor. JAYS' custom A5 driver produces powerful and precise bass with more dynamics and improved details in the midrange and highs than its awarded predecessor. Each pair of a-JAYS Five houses a top-of-the-line microphone with 360-degree, high-performance MEMS technology for perfect speech quality. Features Improved design matches the ear's complex geometry MEMS 360-degree high-performance microphone for perfect speech quality Flat tangle-free cable with Apple aesthetics Integrated full-feature, 3-button SMART-feel remote Driver: JAYS custom A5. Isolation: -40 dB at 2 kHz. Sensitivity: 96 dB SPL at 1 kHz. Impedance: 16 Ohm.