QKZ VK1 Coaxial Four Elements 3.5mm In-ear Stereo Earphone Wired Earbuds (without Microphone) – Black

• Strong signal and high quality sound

• Anti-slip in-ear tip tip design, prevent the occasional drop in running

• 100mm resonating speaker, low base and HiFi stereo sound effect 

• Ergonomic in-ear design with soft silicone earbuds for long-time wearing comfort

• Sweat proof and water proof, ideal for sports, outdoor activities

Specifications:

• Material: PC

• Speaker: 9 mm NdFeB speaker

• Speaker Power: Rated input power: 3mW; Maximum input power: 5mW

• Impedance: 30Ω±15%

• Speaker Sensitivity: 108±2dB (at 1KHz 1mW)

• Speaker Frequency Response: 7-40KHz

• Microphone Sensitivity: -42dB±3dB 1KHz, 3V 0dB=1V/pa

• Operation Temperature: -10°C to 40°C 

Compatible with: 

• iPhone iPad iPod

• Samsung HTC Xiaomi etc smartphones and tablets

• MP3/MP4 players

• Other devices with 3.5mm port