FiiO FA1 Red Ear Loop headphones

Ear-type earphones made with 3D DLP printer. Inside is a special driver developed by Fiio and Knowless with a low 15 ohm impedance. Frequency range: 20 Hz - 20 kHz, Sensitivity: 111 dB (1 kHz @ 1 mW). The outer transparent shell is made of skin-friendly resin, making the ear units lightweight only 4.5 grams and comfortable to wear. The headset features a removable 1.2 m MMCX cable with a standard 3.5 mm plug. Package includes waterproof case, cleaning brush, ear tips optimized for bass (3 pairs), for balanced sound (3 pairs). Color: Blue/Red