Brand COSONIC Model CH-911 Wireless Type Wired Color Black + blue Material leather + plastic Interface Type 3.5mm length 2 M Impedance 32 ohm Sensitivity 58 dB Headphone Frequency Response 20~20000 Hz Microphone Frequency Response 30Hz~16000Hz Features Microphone dimensions: 6.0x0.5mm; Directivity: Omnidirectional; Speaker diameter: 40mm; Sensitivity: 93dB + / 3dB; The headphones is perfect for music game and online chatting; Back-headphones ergonomic design; Drawing processed surface of the shell metal felling clip of the modern design; Exquisite workmanship; HiFi speakers make the high frequency clear and clasp and intermediate frequency sound and durable and reliable; Bending resistance high quality cable makes it perfect Warranty 9 months Packing List 1 x Headphones