Doosl In-Ear Headphones Music Earphones

Features: Hi-Fi & super clear sound quality Comfortable earphone plug Broad sound field Effectively reduces noise Ergonomic design Universal standard 3.5mm aux plug Parameter: 1. Type: In-ear 2. Impedance: 16Ω 3. Frequency Range: 10-24000Hz 4. Sensitivity: 108dB/mW 5. Plug Type: L-type plug with gold plating 6. Cable Length: 1.2m 7. Cable Material: High-purity oxygen-free copper wire 8. Driver Unit: 10mm rare earth permanent magnet moving coil  Accessories: 1. Carrying case 2. Silicone earplug*3 pairs (L/M/S) 3. Cleaning cloth 4. User manual 5. Warranty Card Tips: 1. "Burning in" a pair of new headphones refers to the process of playing a constant, relatively loud audio signal through them for a certain period of time before using them normally. 2. This procedure is meant to improve the headphone's sound by loosening their internal elements and make your new headphones sound better. 3. Burn-in is a gradual process. This process will last for 100-200 hours. 4. Please take care of yo