JVC canal type earphone HA-FXT100 Newly developed Hi-SPEED twin system unit deliver high quality sound. Twin bass port structure delivers massive bass sound. Model: dynamic type. Playback frequency band: 7Hz ~ 26,000Hz. Output sound pressure level: 104dB / 1mW. Maximum allowable input: 150mW. Impedance: 12. Driver:5.8mm. Code: 1.2m (Y type) silver-coated OFC, with 3.5mm 24 gold-plated L-shaped stereo mini plug. Accessories: earpiece (S, M, L each two), carrying case, clip. Weight: about 6.5g (without code).