Features: 1. Use 6mm dual dynamic drivers inside each earphone. These drivers combine to enhance frequnecy range and produce a more natural sound. 2. Full bodied audio immersion, dual drivers deliver wider resolution and enhance the medium and high frequency output range. 3. We precisely tuned the ES2 drivers to not only sound great but also deliver long term audio output. 4. Selected TPE wire, it is flexible, rugged and rangle resistant. 5. Wired remote with built-in microphone, have a clear sound. 6. It is compatible with smartphone, tablet PC, laptop and other 3.5mm devices. Caution: 1. Long-term listening at a high volume is not recommended. 2. When the earphones are out of use, please store it in the clean dry environment provided. 2. Avoid contact with liquid, and avoid extreme temperature or high humidity envronment. Specifications: General Specification Brand BlitzWolf® Model BW-ES2 Color Black, Red Wearing Type In-ear Cable Length (m) 1.2m Net Weight (g) 17g Technical Parameters Compatible With Smartphones, tablets, portable music players and games consoles. Microphone Yes Wired Control Support Driver Size 6mm Interface Diameter 3.5mm audio jack Sensitivity 108 ± 3dB Impendance 16Ω Frequency Response 20Hz-40kHz Package Included: 1 X BW-ES2 Dual Dynamic Driver Earphone 2 X Pairs of Ear Tips 1 X Cable Organizer 1 X Earphone Bag 1 X User Manual 1 X Warrenty Card