SF ‎- A12 3.5MM Super Bass Music In‎-ear Stereo Drive‎-by‎-wire Earphones Headphones Main Features‎:‎ ‎- Crack patterns‎,‎ fastness‎,‎ texture and fashionable‎.‎‎- Ergonomic design‎,‎ wearing more comfortable‎.‎‎- Using high purity oxygen‎-free‎-copper core with TPE shell‎,‎ durable and anti‎-twist‎.‎‎- With well‎-closed skin silicon case‎,‎ environmental and comfortable‎.‎‎- Composite diaphragm‎,‎ provide more powerful sound‎.‎Specification‎:‎ Wire length‎:‎ 106cmSensitivity‎:‎ 102dBImpedance‎:‎ 32 ohmFrequency‎:‎ 18Hz ‎- 20KHz Product weight‎:‎ 0.0150 kgPackage weight‎:‎ 0.0510 kgPackage Size‎(‎L x W x H‎)‎‎:‎ 6.80 x 2.80 x 15.80 cm / 2.68 x 1.1 x 6.22 inchesPackage Contents‎:‎ 1 x Earphones