Universal in-ear earphones with microphone shell material ABS silver plated shell 1.2m wire 3.5mm jack plug single control key Model:YH-23 2. Function: Microphone, Noise Cancelling 3. Horn outer diameter: φ14mm 4. Horn resistance: 32Ω±15% 5. Sensitivity: 95±3dB 6. Material: TPE wire + microphone shell ABS shell material silver plated, shell material ABS silver plated 7. Compatible: Mobile phone, PC, ipad 8. Communication: Wired 9. Frequency response: 10~20 KHz;Power: 5-10MW