FENGRU DTTN Ling 1 Dynamic + 3 Balanced Armature Hybrid Driver In Ear Earphones Vocal HIFI Earplugs Detachable 2Pin for Audiophile Feature: 1. Product Name: FENGRU DTTN Ling In Ear Earphone 2. Type: In-ear 3. Brand: FENGRU 4. Model: Ling 5. Impedance: 16Ω 6. Earphone sensitivity...