Deluxe sound for your workout and beyond The Flex earbuds are designed to match the contours of the human ear. Ear hooks are included to keep earphones in place during activity. Ear clips are detachable and sweatproof. Neodymium drivers and a gold-plated connector deliver high-quality, steady sound. In-line control lets you answer and end calls, control volume, and skip between favorite tunes. The cable is tangle-free and a hard case is included for your convenience. Compatible with most Android devices. Unit driver: 14mm. Sensitivity: 108dB (s.p.l at khz). Impedance: 32ohm. Frequency response: 20 to 20khz. Maximum power input: 5 mw. Input: 3.5mm. Popclik Flex Earbud Headphones For Android, F1AN-BL, Blue is one of many Earbuds & In-Ear Headphones available through Office Depot. Made by POPCLIK.